Prosecution Insights
Last updated: April 19, 2026
Application No. 18/608,324

THERMAL PRINTER

Non-Final OA §103
Filed
Mar 18, 2024
Examiner
MCMILLION, TRACEY M
Art Unit
2853
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Seiko Instruments Inc.
OA Round
2 (Non-Final)
88%
Grant Probability
Favorable
2-3
OA Rounds
2y 2m
To Grant
90%
With Interview

Examiner Intelligence

Grants 88% — above average
88%
Career Allow Rate
545 granted / 623 resolved
+19.5% vs TC avg
Minimal +2% lift
Without
With
+2.4%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 2m
Avg Prosecution
34 currently pending
Career history
657
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
56.2%
+16.2% vs TC avg
§102
25.9%
-14.1% vs TC avg
§112
14.7%
-25.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 623 resolved cases

Office Action

§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 . Response to Arguments Applicant’s arguments with respect to claim(s) 1-8 have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. Examiner acknowledges claim 2 is cancelled. 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. Claim(s) 1, 3-4 and 7-8 are rejected under 35 U.S.C. 103 as being unpatentable over Jimbo (US 2017/0129261) and further in view of Jimbo (US 2017/0182801). With regard to claim 1, Jimbo discloses a thermal printer (1) [Fig. 1], comprising: a housing (2) [casing; Para. 0022]; a printing unit (4) [Para. 0028], which includes a head unit (31) and a platen unit (32) including a platen roller (36), and is received in the housing [Fig. 2]; a cover (3) [paper cover; Para. 0022] configured to be capable of opening and closing the housing; an open button of the cover (18); and a guide shaped portion (70) [liquid discharge structure; Para. 0031], which is provided below a gap between the open button and the housing [See Fig. 2] and at a position corresponding to the gap [Fig. 2], and extends along an up-and-down direction in a horizontal posture [See Fig. 8] that is a state of the thermal printer placed such that a sheet delivery port (24) [delivery slot; Para. 0026] defined between the cover and the housing is facing upward [See Fig. 1 with up direction pointing to the left]. Jimbo (261’) does not disclose wherein the guide shaped portion is provided between the housing and an opposed component received inside the housing. However, Jimbo (801) teaches a guide shaped portion is provided between the housing and an opposed component (51) [lower portion of platen frame; Fig. 3] received inside the housing [Fig. 7B]. It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to configure the guide shaped portion of Jimbo (261) between the housing and the opposed component received inside the housing as taught by Jimbo (801) in order to help guide liquid having entered the casing near the platen frame. With regard to claim 3, Jimbo’s modified thermal printer discloses all the limitations of claim 1 and Jimbo (801) also discloses wherein the guide shaped portion extends downward beyond the opposed component [Fig. 3]. With regard to claim 4, Jimbo’s modified thermal printer discloses all the limitations of claim 1 and Jimbo (261) also further comprising a substrate [roll sheet; Para. 0033] provided below the opposed component [Fig. 3] wherein the substrate is arranged closer to a center of an inside of the housing than the opposed component when seen from the up-and-down direction [Fig. 10], and wherein the guide shaped portion is provided at such a position as to be prevented from overlapping the substrate when seen from the up-and-down direction [Fig. 3]. With regard to claim 7, Jimbo’s modified thermal printer discloses all the limitations of claim 1 and Jimbo also discloses a liquid absorbing sheet (60) absorbs a liquid, e.g., water, having entered the casing (2). [Para. 0050-0051]. With regard to claim 8, Jimbo’s modified thermal printer discloses all the limitations of claim 1 and Jimbo (261) also discloses further comprising a retaining portion (63) [Para. 0063], which is formed in a bottom surface of the housing [Fig. 8], and is configured to retain liquid guided by the guide shaped portion [Fig. 9]. Claim(s) 5 is rejected under 35 U.S.C. 103 as being unpatentable over Jimbo (US 2017/0129261) in view of Jimbo (US 2017/0182801) as applied to claim 1 above, and further in view of Tanaami (US 2011/0305480). With regard to claim 5, Jimbo’s modified thermal printer discloses all the limitations of claim 1 but does not disclose wherein the open button includes a downward protruding portion that protrudes downward. However, Tanaami teaches an open button (36) that includes a protruding portion (36a) [locking claw portion; Para. 0069; Fig. 7] It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to configure the open button of Jimbo with a protruding portion that protrudes in a downward direction to accommodate the direction of the pushing the button in order to elastically lock the cover to the main body. With the guide shaped portion provided below a gap between the open button and the housing, it would be obvious that the it would be provided at a position corresponding to the downward protruding portion. Claim(s) 6 is rejected under 35 U.S.C. 103 as being unpatentable over Jimbo (US 2017/0129261) in view of Jimbo (US 2017/0182801) as applied to claim 1 above, and further in view of Narimatsu (JP 2009036805). With regard to claim 6, Jimbo’s modified thermal printer discloses all the limitations of claim 1, but does not disclose wherein the guide shaped portion is a rib formed on an inner wall of the housing. However, Narimatsu teaches a guide shaped portion is a rib (40) formed on an inner wall (20C) of a housing (20). It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to configure guide shaped portion as a rib formed on an inner wall of the housing as taught by Narimatsu in order to prevent stagnation of the liquid on the printer cover. Claim(s) 9 is rejected under 35 U.S.C. 103 as being unpatentable over Jimbo (US 2017/0129261) and further in view of Tanaami (2011/0305480). With regard to claim 9, Jimbo discloses a thermal printer (1) [Fig. 1], comprising: a housing (2) [casing; Para. 0022]; a printing unit (4) [Para. 0028], which includes a head unit (31) and a platen unit (32) including a platen roller (36), and is received in the housing [Fig. 2]; a cover (3) [paper cover; Para. 0022] configured to be capable of opening and closing the housing; an open button of the cover (18); and a guide shaped portion (70) [liquid discharge structure; Para. 0031], which is provided below a gap between the open button and the housing [See Fig. 2] and at a position corresponding to the gap [Fig. 2], and extends along an up-and-down direction in a horizontal posture [See Fig. 8] that is a state of the thermal printer placed such that a sheet delivery port (24) [delivery slot; Para. 0026] defined between the cover and the housing is facing upward [See Fig. 1 with up direction pointing to the left]. Jimbo does not disclose wherein the open button includes a downward protruding portion that protrudes downward, and wherein the guide shaped portion is provided at a position corresponding to the downward protruding portion. However, Tanaami teaches an open button (36) that includes a protruding portion (36a) [locking claw portion; Para. 0069; Fig. 7] It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to configure the open button of Jimbo with a protruding portion as taught by Tanaami in order to elastically lock the cover to the main body. With the state of the thermal printer placed in a horizontal position the protruding portion can protrude in a downward direction to accommodate the direction of the pushing the button in order to lock the cover. With the guide shaped portion provided below a gap between the open button and the housing, it would be obvious that the it would be provided at a position corresponding to the downward protruding portion. Claim(s) 10 is rejected under 35 U.S.C. 103 as being unpatentable over Jimbo (US 2017/0129261) and further in view of Narimatsu (JP 2009036805). With regard to claim 10, Jimbo discloses a thermal printer (1) [Fig. 1], comprising: a housing (2) [casing; Para. 0022]; a printing unit (4) [Para. 0028], which includes a head unit (31) and a platen unit (32) including a platen roller (36), and is received in the housing [Fig. 2]; a cover (3) [paper cover; Para. 0022] configured to be capable of opening and closing the housing; an open button of the cover (18); and a guide shaped portion (70) [liquid discharge structure; Para. 0031], which is provided below a gap between the open button and the housing [See Fig. 2] and at a position corresponding to the gap [Fig. 2], and extends along an up-and-down direction in a horizontal posture [See Fig. 8] that is a state of the thermal printer placed such that a sheet delivery port (24) [delivery slot; Para. 0026] defined between the cover and the housing is facing upward [See Fig. 1 with up direction pointing to the left]. Jimbo modified does not disclose wherein the guide shaped portion is a rib formed on an inner wall of the housing. However, Narimatsu teaches a guide shaped portion is a rib (40) formed on an inner wall (20C) of a housing (20). It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to configure guide shaped portion as a rib formed on an inner wall of the housing as taught by Narimatsu in order to prevent stagnation of the liquid on the printer cover. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to TRACEY M MCMILLION whose telephone number is (571)270-5193. The examiner can normally be reached Monday-Friday 6AM-2:30PM EST. 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, Ricardo Magallanes can be reached at 571-272-5960. 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. /RICARDO I MAGALLANES/Supervisor Patent Examiner, Art Unit 2853 /TRACEY M MCMILLION/Examiner, Art Unit 2853
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Prosecution Timeline

Mar 18, 2024
Application Filed
Sep 23, 2025
Non-Final Rejection — §103
Dec 12, 2025
Response Filed
Feb 21, 2026
Non-Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12600153
PRINTING APPARATUS AND METHOD FOR PRODUCING PRINTED MATTER
2y 5m to grant Granted Apr 14, 2026
Patent 12594771
IMAGE RECORDING DEVICE INCLUDING THERMAL HEAD AND READER POSITIONED DOWNSTREAM OF THERMAL HEAD IN CONVEYING DIRECTION
2y 5m to grant Granted Apr 07, 2026
Patent 12594775
PRINTING APPARATUS
2y 5m to grant Granted Apr 07, 2026
Patent 12577729
PRESERVATION OF MOISTURE EVAPORATION AND BODY TEMPERATURE REGULATION PROPERTIES ON GARMENTS POST PRINTING
2y 5m to grant Granted Mar 17, 2026
Patent 12578668
EXPOSURE HEAD AND IMAGE FORMING APPARATUS
2y 5m to grant Granted Mar 17, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

2-3
Expected OA Rounds
88%
Grant Probability
90%
With Interview (+2.4%)
2y 2m
Median Time to Grant
Moderate
PTA Risk
Based on 623 resolved cases by this examiner. Grant probability derived from career allow rate.

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