Prosecution Insights
Last updated: April 19, 2026
Application No. 18/514,162

LOCKING DEVICE AND CARRIAGE COVER

Non-Final OA §102§103
Filed
Nov 20, 2023
Examiner
COLILLA, DANIEL JAMES
Art Unit
3612
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Shanghai Yinta Network Technology Co. Ltd.
OA Round
1 (Non-Final)
67%
Grant Probability
Favorable
1-2
OA Rounds
2y 11m
To Grant
90%
With Interview

Examiner Intelligence

Grants 67% — above average
67%
Career Allow Rate
805 granted / 1197 resolved
+15.3% vs TC avg
Strong +23% interview lift
Without
With
+22.7%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
50 currently pending
Career history
1247
Total Applications
across all art units

Statute-Specific Performance

§101
1.3%
-38.7% vs TC avg
§103
38.6%
-1.4% vs TC avg
§102
26.9%
-13.1% vs TC avg
§112
27.4%
-12.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1197 resolved cases

Office Action

§102 §103
DETAILED ACTION Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Claim Rejections - 35 USC § 102 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claim 1 is rejected under 35 U.S.C. 102(a)(1) as being anticipated by Williamson et al. (US 2010/0038926). With respect to claim 1, Williamson et al. disclose a locking device, configured to be engaged with a carriage, comprising: a locking block 86 capable of abutting against the carriage 24 (as shown in Fig. 1 of Williamson et al.); a handle 80 slidably disposed in the locking block 86 (as shown in Figs. 6A-6B of Williamson et al.); and a locking component 94 disposed on the handle 80 and capable of being engaged in a positioning recess 90 of the locking block 86, wherein when the locking component 94 is engaged in the positioning recess 90, the locking component restricts relative movement between the locking block 86 and the handle 80 (Williamson et al., paragraph [0049]; Fig. 6B). 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. Claims 1-8 and 10-17 are rejected under 35 U.S.C. 103 as being unpatentable over Shen et al. (US 2022/0203813) in view of Chen (US 5,295,717). With respect to claim 1, disclose Shen et al. disclose the claimed locking device except for the locking component disposed on the handle and capable of being engaged in a positioning recess of the locking block. Shen et al. disclose a locking device, configured to be engaged with a carriage, comprising: a locking block 4 capable of abutting against the carriage 10 (as shown in Fig. 4B of Shen et al.); and a handle 5 slidably disposed in the locking block 4 (as shown in Figs. 4B and 4C of Shen et al.). Chen teaches a similar locking device including a locking block 25, a handle 40, and a locking component 51 disposed on the handle 40 and capable of being engaged in a positioning recess 26 of the locking block 25 (as shown in Fig. 5 of Chen), wherein when the locking component 51 is engaged in the positioning recess 26, the locking component restricts relative movement between the locking block 25 and the handle 40 (Chen, col. 5, lines 4-16; Fig. 10). It 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, with a reasonable expectation of success, to combine the teaching of Chen with the locking device disclosed by Shen et al. for the advantage of preventing the handle from easily opening due to movement and vibration of the locking device. With respect to claim 2, Chen teaches that the locking component 51 comprises a positioning member 53 and a guide frame, the guide frame is disposed on the handle 40 as shown below in the image taken from Fig. 10 of Chen: [AltContent: textbox (portion of handle in box is the guide frame)][AltContent: ][AltContent: rect] PNG media_image1.png 342 220 media_image1.png Greyscale and the positioning member 53 is slidably disposed in the guide frame and capable of being engaged in the positioning recess 26 as shown above. With respect to claim 3, Chen discloses that the positioning member 53 comprises a long pin (which is a mechanical equivalent of a long strip plate) as shown in Fig. 10 of Chen), the long strip plate is capable of being engaged in the positioning recess 26 (as shown in Fig. 10 of Chen), the guide frame is formed with a bypass groove 47, and the long strip plate is located in the bypass groove 47 and capable of sliding in the bypass groove 47 (as shown in Figs. 7-8 of Chen). With respect to claim 4, Chen teaches that the positioning member 8 further comprises an operation boss 52 disposed on the long strip plate 51 (as shown in Fig. 8 of Chen), the guide frame is further formed with a sliding channel 44 extending in a first direction, the operation boss 52 is restricted in the sliding channel 44, and when the operation boss moves in the sliding channel in the first direction, the long strip plate synchronously moves in the bypass groove in the first direction (as can be seen from Fig. 8 of Chen.). With respect to claim 5, Chen discloses that the locking component further comprises an elastic member 54 disposed in the guide frame (as shown in Fig. 8 of Chen), and two ends of the elastic member 54 abut against the guide frame (at locking ring 55) and the positioning member respectively (through operation boss 52). With respect to claim 6, Chen discloses that the positioning member comprises a stop boss 52, the guide frame is formed with a stop slot 44, the stop boss 52 is restricted in the stop slot 44 and is capable of sliding in the stop slot 44 (as shown in Figs. 7-8 of Chen), and the elastic member 54 is disposed in the stop slot 44 and abuts against an inner wall of the stop slot 44 and/or the stop boss 52 (as shown in Fig. 8 of Chen). With respect to claim 7, Shen et al. disclose an adapter block 2 and a sliding rod 3, wherein an end of the sliding rod 3 is disposed in the adapter block 2, the sliding rod 3 is capable of sliding in the adapter block 2 and is capable of rotating relative to the adapter block 2 (Shen et al., paragraph [0017]), the locking block 4 sleeves outside the sliding rod 3, and the handle 5 is rotatably connected to the sliding rod 3 (threaded hole 601 in insertion block which is inside the handle 5 rotates to attach to threads 302 of rod 3). With respect to claim 8, Shen et al. disclose a cylindrical pin 6 rotatably connected to the handle 5 and screwed to the sliding rod (Shen et al., paragraph [0022]; Fig. 1). With respect to claim 10, Shen et al. in view of Chen disclose a carriage cover, comprising a carriage cover body (Shen et al., paragraph [0005]), a first mounting strip 8, a second mounting strip 1, and the locking device according to claim 1 (as outlined above in the prior art rejection of claim 1), wherein the first mounting strip and the second mounting strip are perpendicular to each other and are disposed on a lower side of the carriage cover body (as shown in Figs. 3 and 4B of Shen et al.), the locking device is disposed on the second mounting strip 1 (as shown in Fig. 4B of Shen et al.), and when the carriage cover covers the carriage, the locking device is configured to be engaged with the carriage 10 (Shen et al., paragraphs [0004]-[0005]). With respect to claim 11, Chen teaches that the locking component 51 comprises a positioning member 53 and a guide frame, the guide frame is disposed on the handle 40 as shown below in the image taken from Fig. 10 of Chen: [AltContent: textbox (portion of handle in box is the guide frame)][AltContent: ][AltContent: rect] PNG media_image1.png 342 220 media_image1.png Greyscale and the positioning member 53 is slidably disposed in the guide frame and capable of being engaged in the positioning recess 26 as shown above. With respect to claim 12, Chen discloses that the positioning member 53 comprises a long pin (which is a mechanical equivalent of a long strip plate) as shown in Fig. 10 of Chen), the long strip plate is capable of being engaged in the positioning recess 26 (as shown in Fig. 10 of Chen), the guide frame is formed with a bypass groove 47, and the long strip plate is located in the bypass groove 47 and capable of sliding in the bypass groove 47 (as shown in Figs. 7-8 of Chen). With respect to claim 13, Chen teaches that the positioning member 8 further comprises an operation boss 52 disposed on the long strip plate 51 (as shown in Fig. 8 of Chen), the guide frame is further formed with a sliding channel 44 extending in a first direction, the operation boss 52 is restricted in the sliding channel 44, and when the operation boss moves in the sliding channel in the first direction, the long strip plate synchronously moves in the bypass groove in the first direction (as can be seen from Fig. 8 of Chen.). With respect to claim 14, Chen discloses that the locking component further comprises an elastic member 54 disposed in the guide frame (as shown in Fig. 8 of Chen), and two ends of the elastic member 54 abut against the guide frame (at locking ring 55) and the positioning member respectively (through operation boss 52). With respect to claim 15, Chen discloses that the positioning member comprises a stop boss 52, the guide frame is formed with a stop slot 44, the stop boss 52 is restricted in the stop slot 44 and is capable of sliding in the stop slot 44 (as shown in Figs. 7-8 of Chen), and the elastic member 54 is disposed in the stop slot 44 and abuts against an inner wall of the stop slot 44 and/or the stop boss 52 (as shown in Fig. 8 of Chen). With respect to claim 16, Shen et al. disclose an adapter block 2 and a sliding rod 3, wherein an end of the sliding rod 3 is disposed in the adapter block 2, the sliding rod 3 is capable of sliding in the adapter block 2 and is capable of rotating relative to the adapter block 2 (Shen et al., paragraph [0017]), the locking block 4 sleeves outside the sliding rod 3, and the handle 5 is rotatably connected to the sliding rod 3 (threaded hole 601 in insertion block which is inside the handle 5 rotates to attach to threads 302 of rod 3). With respect to claim 17, Shen et al. disclose a cylindrical pin 6 rotatably connected to the handle 5 and screwed to the sliding rod (Shen et al., paragraph [0022]; Fig. 1). Claims 1, 9, 10, and 18 are rejected under 35 U.S.C. 103 as being unpatentable over Zheng (US 11,014,436) in view of Chen (US 5,295,717). With respect to claim 1, disclose Zheng discloses the claimed locking device except for the locking component disposed on the handle and capable of being engaged in a positioning recess of the locking block. Zheng discloses a locking device, configured to be engaged with a carriage, comprising: a locking block 338 capable of abutting against the carriage 22 (as shown in Fig. 3 of Zheng); and a handle 340 slidably disposed in the locking block 338 (Zheng, col. 9, lines 20-27). Chen teaches a similar locking device including a locking block 25, a handle 40, and a locking component 51 disposed on the handle 40 and capable of being engaged in a positioning recess 26 of the locking block 25 (as shown in Fig. 5 of Chen), wherein when the locking component 51 is engaged in the positioning recess 26, the locking component restricts relative movement between the locking block 25 and the handle 40 (Chen, col. 5, lines 4-16; Fig. 10). It 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, with a reasonable expectation of success, to combine the teaching of Chen with the locking device disclosed by Zheng et al. for the advantage of preventing the handle from easily opening due to movement and vibration of the locking device. With respect to claim 9, Zheng discloses that the locking block 338 is provided with two sliding protrusions 345, the two sliding protrusions 345 are disposed opposite to each other (as shown in Fig. 6 of Zheng), the handle 340 comprises two wing plates 347 symmetrically disposed, and the two wing plates 347 abut against the two sliding protrusions 345 and are capable of sliding on the two sliding protrusions 345 (Zheng, col. 9, lines 20-27; Fig. 6). With respect to claim 10, Zheng in view of Chen disclose a carriage cover, comprising a carriage cover body 18, a first mounting strip 20, a second mounting strip 30, and the locking device according to claim 1 (as outlined above in the prior art rejection of claim 1), wherein the first mounting strip 20 and the second mounting strip 30 are perpendicular to each other and are disposed on a lower side of the carriage cover body (as shown in Fig. 2 of Zheng), the locking device is disposed on the second mounting strip 30 (as shown in Fig. 2 of Zheng), and when the carriage cover covers the carriage (as shown in Fig. 1 of Zheng), the locking device is configured to be engaged with the carriage 10 (As shown in Fig. 3 of Zheng). With respect to claim 18, Zheng discloses that the locking block 338 is provided with two sliding protrusions 345, the two sliding protrusions 345 are disposed opposite to each other (as shown in Fig. 6 of Zheng), the handle 340 comprises two wing plates 347 symmetrically disposed, and the two wing plates 347 abut against the two sliding protrusions 345 and are capable of sliding on the two sliding protrusions 345 (Zheng, col. 9, lines 20-27; Fig. 6). Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Kotake is cited to show another example of a locking device including a positioning member and a guide frame. Any inquiry concerning this communication or earlier communications from the examiner should be directed to DANIEL J COLILLA whose telephone number is (571)272-2157. The examiner can normally be reached M-F 7:30 - 4:00. 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, Amy Weisberg can be reached at 571-270-5500. 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. /Daniel J Colilla/Primary Examiner, Art Unit 3612
Read full office action

Prosecution Timeline

Nov 20, 2023
Application Filed
Jan 27, 2026
Non-Final Rejection — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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LOCKING DEVICE AND CARGO DECK
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2y 5m to grant Granted Apr 14, 2026
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2y 5m to grant Granted Mar 31, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
67%
Grant Probability
90%
With Interview (+22.7%)
2y 11m
Median Time to Grant
Low
PTA Risk
Based on 1197 resolved cases by this examiner. Grant probability derived from career allow rate.

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