Prosecution Insights
Last updated: April 19, 2026
Application No. 18/422,208

TEMPERATURE GAUGE AND TEMPERATURE GAUGE WITH FLOATING SHELL

Non-Final OA §103
Filed
Jan 25, 2024
Examiner
JAGAN, MIRELLYS
Art Unit
2855
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Shenzhen Cootway Technology Co. Ltd.
OA Round
1 (Non-Final)
83%
Grant Probability
Favorable
1-2
OA Rounds
2y 9m
To Grant
88%
With Interview

Examiner Intelligence

Grants 83% — above average
83%
Career Allow Rate
1215 granted / 1467 resolved
+14.8% vs TC avg
Moderate +6% lift
Without
With
+5.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
25 currently pending
Career history
1492
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
47.0%
+7.0% vs TC avg
§102
33.9%
-6.1% vs TC avg
§112
13.1%
-26.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1467 resolved cases

Office Action

§103
DETAILED ACTION The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Claim Objections Claims 1, 3, 6, 11, 13, and 16 are objected to because of the following informalities: In claim 1, --and-- should be added before “the shell” in line 4 and before “the temperature” in line 8; and --the-- should be added after “immersed in” in line 9. In claim 3, “face” should be deleted from line 2 (there is lack of antecedent basis in the claim for a “detection end face”). In claim 6, there is lack of antecedent basis in the claim for a “second” sealing ring and a “second” sealing groove in lines 1, 3, and 4 (the term “second” implies that there is a first sealing ring and a first sealing groove, which are not recited in base claim 1); and --the-- should be added before “second sealing ring” in line 3. In claim 11, --and-- should be added before “the shell” in line 6 and before “the temperature” in line 10; and --the-- should be added after “immersed in” in line 11. In claim 13, “face” should be deleted from line 3 (there is lack of antecedent basis in the claim for a “detection end face”). In claim 16, there is lack of antecedent basis in the claim for a “second” sealing ring and a “second” sealing groove in lines 2-5 (the term “second” implies that there is a first sealing ring and a first sealing groove, which are not recited in base claim 11); and --the-- should be added before “second sealing ring” in line 3. Appropriate correction is required. Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claims 1-3, 5-7, 9, 11-13, 15-17, and 19 are rejected under 35 U.S.C. 103 as being unpatentable over CN208704893 to Luo (see the attached translation) in view of U.S. Patent Application Publication 2005/0220169 to McGowan-Scanlon [hereinafter McGowan] and U.S. Patent Application Publication 2023/0184598 to Zhang. Referring to claim 1, Luo discloses a temperature gauge (figures 1, 2; paragraphs 5-7, 10, 18), comprising: a shell (1, 3), wherein an accommodating chamber is arranged in the shell (figure 1), at least a portion of an upper part (3) of the shell is transparent (paragraphs 7, 18); a temperature sensing device (11), wherein the temperature sensing device (11) is arranged inside the accommodating chamber and extends out of a bottom (1) of the shell (figure 1), and the temperature sensing device (11) is configured to be immersed in the water to detect a water temperature; and a display device (8), wherein the display device (8) is arranged inside the accommodating chamber, the display device faces the transparent portion (3) of the upper part of the shell. Luo does not explicitly disclose the shell being configured to be detachably connected to a floating shell and floats on a water surface under the action of buoyancy of the floating shell, a control device being arranged inside the accommodating chamber, the temperature sensing device being at least partially threaded out of the bottom of the shell, the temperature sensing device being electrically connected to the control device to generate an electrical signal and transmit the electrical signal to the control device, the display device being electrically connected to the control device, and the control device receiving the electrical signal and controlling the display device to display a temperature. However, McGowan discloses a floating temperature gauge (figures 2, 4; paragraphs 1, 35) comprising a shell that is configured to be detachably connected to a floating shell (6) in order to float on a water surface under the action of buoyancy of the floating shell and provide protection by acting as a shock absorber. Furthermore, Zhang discloses a floating temperature gauge (figures 2-4; paragraphs 31, 33) that comprises a control device (2) that is arranged inside an accommodating chamber (figure 4), a temperature sensing device (3) that is electrically connected to the control device (2) to generate an electrical signal and transmit the electrical signal to the control device (2), and a display device (4) that is electrically connected to the control device (2), wherein the control device (3) receives the electrical signal and controls the display device (4) in order to display a temperature. Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to provide Luo with a detachable floating shell such that the shell is detachably connected to the floating shell and floats on a water surface under the action of buoyancy of the floating shell, as suggested by McGowan, in order to provide additional buoyancy of the floating shell and provide protection by acting as a shock absorber. Furthermore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to arrange a control device inside the accommodating chamber of Luo such that the temperature sensing device is electrically connected to the control device to generate an electrical signal and transmit the electrical signal to the control device, the display device is electrically connected to the control device, and the control device receives the electrical signal and controls the display device, as suggested by Zhang, in order to obtain and display a temperature. Lastly, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify Luo by attaching the temperature sensing device by at least partially threading it out of the bottom of the shell in order to provide a more secure connection to the shell; and since the particular securement claimed by applicant, i.e., threading, is considered to be nothing more than a choice of engineering skill, choice, or design, because the use of the particular securement claimed by applicant is considered to be the use of numerous and known alternate types of securements that a person having ordinary skill in the art before the effective filing date of the claimed invention would have been able to provide using routine experimentation in order to attach the temperature sensing device to the shell as already suggested by Luo. Referring to claim 2, Luo in view of McGowan and Zhang disclose a gauge having all of the limitations of claim 2, as stated above with respect to claim 1, wherein Luo further discloses that the bottom (1) of the shell (1,3) extends downwards to form a protruding insertion part (figure 1); a tail end of the insertion part (1) is provided with a mounting hole communicated to the accommodating chamber (figure 1), but does not disclose a detection end of the temperature sensing device being threaded out along the mounting hole. However, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify Luo in view of McGowan and Zhang by having a detection end of the temperature sensing device be threaded out along the mounting hole in order to provide a more secure connection to the shell, as stated above with respect to Luo in view of McGowan and Zhang. Referring to claim 3, Luo in view of McGowan and Zhang disclose a gauge having all of the limitations of claim 3, as stated above with respect to claim 2, wherein Luo further discloses a limiting block (shoulder) being arranged in the mounting hole in a protruding manner (figure 1), and an end surface (top of 11) of the detection end of the temperature sensing device (11) is abutted to the limiting block (figure 1). Referring to claim 5, Luo in view of McGowan and Zhang disclose a gauge having all of the limitations of claim 5, as stated above with respect to claim 2, wherein Luo further discloses protective flaps (formed by holes 12 of cover 10) are arranged at a tail end of the insertion part in a protruding manner, and the protective flaps are arranged around the detection end of the temperature sensing device (figure 1, 2; paragraph 18). Referring to claim 6, Luo in view of McGowan and Zhang a gauge having all of the limitations of claim 6, as stated above with respect to claim 1, wherein Luo discloses an upper shell (3) and a lower shell (1); but does not disclose a sealing ring, wherein the upper shell is provided with a sealing groove; the sealing ring is inserted into the sealing groove; the lower shell is connected to the upper shell and is abutted to the sealing ring; and the accommodating chamber is formed between the upper shell and the lower shell. However, Zhang further discloses that the gauge has a sealing ring (123), wherein the shell comprises an upper shell (117) and a lower shell (121); the upper shell (117) is provided with a sealing groove (figure 4); the sealing ring (123) is inserted into the sealing groove; the lower shell (121) is connected to the upper shell (117) and is abutted to the sealing ring (123); and the accommodating chamber is formed between the upper shell (117) and the lower shell (121) in order to provide a seal to prevent damage and short circuit (paragraph 39). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify Luo in view of McGowan and Zhang by providing Luo with a second sealing ring, the upper shell being provided with a sealing groove; the second sealing ring is inserted into the second sealing groove; the lower shell is connected to the upper shell and is abutted to the second sealing ring; and the accommodating chamber is formed between the upper shell and the lower shell, as suggested by Zhang, in order to provide a seal to prevent damage and short circuit. Referring to claim 7, Luo in view of McGowan and Zhang disclose a gauge having all of the limitations of claim 7, as stated above with respect to claim 1, except for Luo disclosing a button assembly, wherein a button hole is arranged on a lower surface of the shell; the button assembly is hermetically inserted into the button hole; and the button assembly is electrically connected to the control device. However, Zhang further discloses a button assembly (figures 1-3; paragraph 40), wherein the button assembly is hermetically inserted into a button hole (paragraph 40); and the button assembly is electrically connected to the control device (2). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify Luo in view of McGowan and Zhang by providing Luo with a button assembly, the button assembly being hermetically inserted into the button hole, and the button assembly being electrically connected to the control device, as suggested by Zhang, in order to provide a control of operation of the gauge. Furthermore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify Luo in view of McGowan and Zhang by arranging the button hole on a lower surface of the shell in order to provide it a location that does not disturb the display; and since the location of the button hole claimed by applicant, is considered to be nothing more than a design choice since the particular location claimed by applicant is nothing more than one of numerous locations of the shell that a person having ordinary skill in the art before the effective filing date of the claimed invention would have been able to provide in order to provide a button as already suggested by Luo in view of McGowan and Zhang. Referring to claim 9, Luo in view of McGowan and Zhang disclose a gauge having all of the limitations of claim 9, as stated above with respect to claim 1, except for Luo disclosing a solar panel, wherein the solar panel is arranged at a top of the accommodating chamber and faces the transparent portion of the upper part of the shell, and the solar panel is electrically connected to the control device. However, Zhang further discloses (figure 4; paragraphs 6, 34) the gauge having a solar panel (7), wherein the solar panel (7) is arranged at a top of the accommodating chamber (figure 4) and faces an upper part of the shell, and the solar panel (7) is electrically connected to the control device (2) in order to power the gauge without a battery. Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify Luo in view of McGowan and Zhang by providing Luo with a solar panel that is arranged at a top of the accommodating chamber and faces the transparent portion of the upper part of the shell, the solar panel being electrically connected to the control device, as suggested by Zheng, in order to power the gauge without a battery. Referring to claim 11, Luo discloses a temperature gauge (figures 1, 2; paragraphs 5-7, 10, 18), comprising: a shell (1, 3), wherein an accommodating chamber is arranged in the shell (figure 1), at least a portion of an upper part (3) of the shell is transparent (paragraphs 7, 18); a temperature sensing device (11), wherein the temperature sensing device (11) is arranged inside the accommodating chamber and extends out of a bottom (1) of the shell (figure 1), and the temperature sensing device (11) is configured to be immersed in the water to detect a water temperature; and a display device (8), wherein the display device (8) is arranged inside the accommodating chamber, the display device faces the transparent portion (3) of the upper part of the shell. Luo does not explicitly disclose a floating shell that is provided with a sealed floating chamber and an insertion space, the shell being configured to be detachably connected and inserted to the insertion space and floats on a water surface under the action of buoyancy of the floating shell, a control device being arranged inside the accommodating chamber, the temperature sensing device being at least partially threaded out of the bottom of the shell, the temperature sensing device being electrically connected to the control device to generate an electrical signal and transmit the electrical signal to the control device, the display device being electrically connected to the control device, and the control device receiving the electrical signal and controlling the display device to display a temperature. However, McGowan discloses a floating temperature gauge (figures 2, 4; paragraphs 1, 35) comprising a shell that is configured to be detachably connected and inserted to a floating shell (6) having a sealed floating chamber (rubber) and an insertion space in order to float on a water surface under the action of buoyancy of the floating shell and provide protection by acting as a shock absorber. Furthermore, Zhang discloses a floating temperature gauge (figures 2-4; paragraphs 31, 33) that comprises a control device (2) that is arranged inside an accommodating chamber (figure 4), a temperature sensing device (3) that is electrically connected to the control device (2) to generate an electrical signal and transmit the electrical signal to the control device (2), and a display device (4) that is electrically connected to the control device (2), wherein the control device (3) receives the electrical signal and controls the display device (4) in order to display a temperature. Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to provide Luo with a detachable floating shell provided with a sealed floating chamber and an insertion space such that the shell is detachably connected and inserted to the insertion space of the floating shell and floats on a water surface under the action of buoyancy of the floating shell, as suggested by McGowan, in order to provide additional buoyancy of the floating shell and provide protection by acting as a shock absorber. Furthermore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to arrange a control device inside the accommodating chamber of Luo such that the temperature sensing device is electrically connected to the control device to generate an electrical signal and transmit the electrical signal to the control device, the display device is electrically connected to the control device, and the control device receives the electrical signal and controls the display device, as suggested by Zhang, in order to obtain and display a temperature. Lastly, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify Luo by attaching the temperature sensing device by at least partially threading it out of the bottom of the shell in order to provide a more secure connection to the shell; and since the particular securement claimed by applicant, i.e., threading, is considered to be nothing more than a choice of engineering skill, choice, or design, because the use of the particular securement claimed by applicant is considered to be the use of numerous and known alternate types of securements that a person having ordinary skill in the art before the effective filing date of the claimed invention would have been able to provide using routine experimentation in order to attach the temperature sensing device to the shell as already suggested by Luo. Referring to claim 12, Luo in view of McGowan and Zhang disclose a gauge having all of the limitations of claim 12, as stated above with respect to claim 11, wherein Luo further discloses that the bottom (1) of the shell (1,3) extends downwards to form a protruding insertion part (figure 1); a tail end of the insertion part (1) is provided with a mounting hole communicated to the accommodating chamber (figure 1), but does not disclose a detection end of the temperature sensing device being threaded out along the mounting hole. However, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify Luo in view of McGowan and Zhang by having a detection end of the temperature sensing device be threaded out along the mounting hole in order to provide a more secure connection to the shell, as stated above with respect to Luo in view of McGowan and Zhang. Referring to claim 13, Luo in view of McGowan and Zhang disclose a gauge having all of the limitations of claim 13, as stated above with respect to claim 12, wherein Luo further discloses a limiting block (shoulder) being arranged in the mounting hole in a protruding manner (figure 1), and an end surface (top of 11) of the detection end of the temperature sensing device (11) is abutted to the limiting block (figure 1). Referring to claim 15, Luo in view of McGowan and Zhang disclose a gauge having all of the limitations of claim 15, as stated above with respect to claim 12, wherein Luo further discloses protective flaps (formed by holes 12 of cover 10) are arranged at a tail end of the insertion part in a protruding manner, and the protective flaps are arranged around the detection end of the temperature sensing device (figure 1, 2; paragraph 18). Referring to claim 16, Luo in view of McGowan and Zhang a gauge having all of the limitations of claim 16, as stated above with respect to claim 11, wherein Luo discloses an upper shell (3) and a lower shell (1); but does not disclose a sealing ring, wherein the upper shell is provided with a sealing groove; the sealing ring is inserted into the sealing groove; the lower shell is connected to the upper shell and is abutted to the sealing ring; and the accommodating chamber is formed between the upper shell and the lower shell. However, Zhang further discloses that the gauge has a sealing ring (123), wherein the shell comprises an upper shell (117) and a lower shell (121); the upper shell (117) is provided with a sealing groove (figure 4); the sealing ring (123) is inserted into the sealing groove; the lower shell (121) is connected to the upper shell (117) and is abutted to the sealing ring (123); and the accommodating chamber is formed between the upper shell (117) and the lower shell (121) in order to provide a seal to prevent damage and short circuit (paragraph 39). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify Luo in view of McGowan and Zhang by providing Luo with a second sealing ring, the upper shell being provided with a sealing groove; the second sealing ring is inserted into the second sealing groove; the lower shell is connected to the upper shell and is abutted to the second sealing ring; and the accommodating chamber is formed between the upper shell and the lower shell, as suggested by Zhang, in order to provide a seal to prevent damage and short circuit. Referring to claim 17, Luo in view of McGowan and Zhang disclose a gauge having all of the limitations of claim 17, as stated above with respect to claim 11, except for Luo disclosing a button assembly, wherein a button hole is arranged on a lower surface of the shell; the button assembly is hermetically inserted into the button hole; and the button assembly is electrically connected to the control device. However, Zhang further discloses a button assembly (figures 1-3; paragraph 40), wherein the button assembly is hermetically inserted into a button hole (paragraph 40); and the button assembly is electrically connected to the control device (2). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify Luo in view of McGowan and Zhang by providing Luo with a button assembly, the button assembly being hermetically inserted into the button hole, and the button assembly being electrically connected to the control device, as suggested by Zhang, in order to provide a control of operation of the gauge. Furthermore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify Luo in view of McGowan and Zhang by arranging the button hole on a lower surface of the shell in order to provide it a location that does not disturb the display; and since the location of the button hole claimed by applicant, is considered to be nothing more than a design choice since the particular location claimed by applicant is nothing more than one of numerous locations of the shell that a person having ordinary skill in the art before the effective filing date of the claimed invention would have been able to provide in order to provide a button as already suggested by Luo in view of McGowan and Zhang. Referring to claim 19, Luo in view of McGowan and Zhang disclose a gauge having all of the limitations of claim 19, as stated above with respect to claim 11, except for Luo disclosing a solar panel, wherein the solar panel is arranged at a top of the accommodating chamber and faces the transparent portion of the upper part of the shell, and the solar panel is electrically connected to the control device. However, Zhang further discloses (figure 4; paragraphs 6, 34) the gauge having a solar panel (7), wherein the solar panel (7) is arranged at a top of the accommodating chamber (figure 4) and faces an upper part of the shell, and the solar panel (7) is electrically connected to the control device (2) in order to power the gauge without a battery. Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify Luo in view of McGowan and Zhang by providing Luo with a solar panel that is arranged at a top of the accommodating chamber and faces the transparent portion of the upper part of the shell, the solar panel being electrically connected to the control device, as suggested by Zheng, in order to power the gauge without a battery. Allowable Subject Matter Claims 4, 8, 10, 14, 18, and 20 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims, and amended to overcome the objections set forth in this Office action. The following is a statement of reasons for the indication of allowable subject matter: The prior art of record does not disclose or suggest the following in combination with the remaining limitations of the claims: A temperature gauge wherein a first sealing groove is arranged on the end surface of the detection end face of the temperature sensing device; the first sealing ring is arranged in the first sealing groove; and the limiting block is abutted to a surface of the first sealing ring (claims 4 and 14); wherein the button assembly comprises a button control board connected to the shell, an edge of the silica gel button cap is hermetically connected to the shell, and a middle part of the silica gel button cap is in contact with an electrical contact on the button control board (claims 8 and 18); and wherein an opening is arranged in a middle part of the solar panel, and the opening directly faces the display device and is configured to allow light to pass (claims 10 and 20). Conclusion The references made of record and not relied upon by the examine are considered pertinent to applicant's disclosure by disclosing a floating temperature gauge, but do not disclose the allowable subject matter stated above. Any inquiry concerning this communication or earlier communications from the examiner should be directed to MIRELLYS JAGAN whose telephone number is (571)272-2247. The examiner can normally be reached Tuesday-Friday 8-6. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Kristina DeHerrera can be reached at 303-297-4237. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /MIRELLYS JAGAN/ Primary Examiner Art Unit 2855 3/21/26
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Prosecution Timeline

Jan 25, 2024
Application Filed
Mar 21, 2026
Non-Final Rejection — §103 (current)

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Prosecution Projections

1-2
Expected OA Rounds
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Grant Probability
88%
With Interview (+5.6%)
2y 9m
Median Time to Grant
Low
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