Prosecution Insights
Last updated: May 29, 2026
Application No. 17/775,672

RADIANT HEAT PROTECTION DEVICE, RADIANT HEAT PROTECTION METHOD, AND SERVICE VEHICLE

Final Rejection §112
Filed
May 10, 2022
Priority
Nov 22, 2019 — JP 2019-211645 +1 more
Examiner
KIM, CHRISTOPHER S
Art Unit
3752
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Mitsubishi Heavy Industries Ltd.
OA Round
4 (Final)
63%
Grant Probability
Moderate
5-6
OA Rounds
0m
Est. Remaining
84%
With Interview

Examiner Intelligence

Grants 63% of resolved cases
63%
Career Allowance Rate
709 granted / 1126 resolved
-7.0% vs TC avg
Strong +21% interview lift
Without
With
+21.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 5m
Avg Prosecution
29 currently pending
Career history
1167
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
44.7%
+4.7% vs TC avg
§102
31.1%
-8.9% vs TC avg
§112
15.6%
-24.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1126 resolved cases

Office Action

§112
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 Amendment The text of those sections of Title 35, U.S. Code not included in this action can be found in a prior Office action. The response filed on April 22, 2026 is acknowledged. Claim Rejections - 35 USC § 112 Claims 1, 2, 6-10 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claim 1 recites the limitation “a control device configured to cause the coolant to be supplied to the coolant retainer from the coolant feed pump at regular intervals” in lines 11-12. The intervals limited by the term “regular intervals” is indefinite. It is uncertain what intervals are defined/limited by the term “regular intervals.” The specification provides no guidance to determine the intervals defined by “regular intervals.” Claim 1 recites the limitation “a control device configured to cause the coolant to be supplied to the coolant retainer from the coolant feed pump at regular intervals” in lines 11-12. The specification fails to recite structure to enable the control device to cause the coolant to be supplied to the coolant retainer from the coolant feed device intermittently at regular intervals. Presumably, not all control devices are capable of performing such function. The structure recited by the claim is not commensurate in scope with the function required by the claim. Claim 6 recites the limitation “spraying a coolant which is water at regular intervals from a spray nozzle” in line 6. The intervals limited by the term “regular intervals” is indefinite. It is uncertain what intervals are defined/limited by the term “regular intervals.” The specification provides no guidance to determine the intervals defined by “regular intervals.” Response to Arguments Applicant's arguments filed April 22, 2026 have been fully considered but they are not persuasive. Applicant argues that “at regular intervals” is defined as: at times that are equally separated. Applicant is arguing a limited interpretation of “regular intervals.” The term regular is defined as: normal. Dictionary.com. The interpretation of normal intervals requires a subjective determination. What may be considered normal by one of ordinary skill in the art may not be considered normal to another of ordinary skill in the art. Additionally, the specification does not support Applicant’s argument of such a narrow interpretation. Regarding Applicant’s argument to the coolant feed pump, a coolant feed pump, in itself, is not capable supplying coolant at regular intervals. Otherwise, all coolant feed pumps would be capable of supplying coolant at regular intervals. Conclusion THIS ACTION IS MADE FINAL. Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to CHRISTOPHER S KIM whose telephone number is (571)272-4905. The examiner can normally be reached M-F 7:30-3:30. 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, Arthur O Hall can be reached on (571) 270-1814. 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. /CHRISTOPHER S KIM/Primary Examiner, Art Unit 3752 CHRISTOPHER S. KIM Examiner Art Unit 3752 CK
Read full office action

Prosecution Timeline

Show 6 earlier events
Apr 21, 2025
Examiner Interview Summary
Apr 21, 2025
Applicant Interview (Telephonic)
Apr 24, 2025
Request for Continued Examination
Apr 25, 2025
Response after Non-Final Action
May 20, 2025
Response Filed
Jan 28, 2026
Non-Final Rejection mailed — §112
Apr 22, 2026
Response Filed
May 14, 2026
Final Rejection mailed — §112 (current)

Precedent Cases

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

5-6
Expected OA Rounds
63%
Grant Probability
84%
With Interview (+21.4%)
3y 5m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 1126 resolved cases by this examiner. Grant probability derived from career allowance rate.

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