Prosecution Insights
Last updated: April 19, 2026
Application No. 18/335,066

COOLING SYSTEMS FOR COMPUTER EQUIPMENT CABINETS

Final Rejection §112
Filed
Jun 14, 2023
Examiner
LIN, KO-WEI
Art Unit
3762
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
VERTIV CORPORATION
OA Round
2 (Final)
76%
Grant Probability
Favorable
3-4
OA Rounds
3y 2m
To Grant
96%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allow Rate
609 granted / 806 resolved
+5.6% vs TC avg
Strong +20% interview lift
Without
With
+20.5%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
19 currently pending
Career history
825
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
42.6%
+2.6% vs TC avg
§102
18.2%
-21.8% vs TC avg
§112
35.8%
-4.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 806 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 . Drawings The drawings are objected to under 37 CFR 1.83(a). The drawings must show every feature of the invention specified in the claims. Claim 8 recites “a flexible duct extending upwardly from the first fan”. However claim 1 also recites “a first duct extending upwardly from the first fan”. These two limitations claim that the system has two ducts that together extend from the first fan. However the original specification does not disclose that two ducts (one is flexible) extending from one fan. Therefore, the limitation about “two ducts connected to a fan” must be shown or the feature(s) canceled from the claim(s). No new matter should be entered. Corrected drawing sheets in compliance with 37 CFR 1.121(d) are required in reply to the Office action to avoid abandonment of the application. Any amended replacement drawing sheet should include all of the figures appearing on the immediate prior version of the sheet, even if only one figure is being amended. The figure or figure number of an amended drawing should not be labeled as “amended.” If a drawing figure is to be canceled, the appropriate figure must be removed from the replacement sheet, and where necessary, the remaining figures must be renumbered and appropriate changes made to the brief description of the several views of the drawings for consistency. Additional replacement sheets may be necessary to show the renumbering of the remaining figures. Each drawing sheet submitted after the filing date of an application must be labeled in the top margin as either “Replacement Sheet” or “New Sheet” pursuant to 37 CFR 1.121(d). If the changes are not accepted by the examiner, the applicant will be notified and informed of any required corrective action in the next Office action. The objection to the drawings will not be held in abeyance. Specification The disclosure is objected to because of the following informalities: The specification does not disclose that two ducts extending from one single fan (see explanation in 112a rejection). Appropriate correction is required. Claim Rejections - 35 USC § 112 The following is a quotation of the first paragraph of 35 U.S.C. 112(a): (a) IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. The following is a quotation of the first paragraph of pre-AIA 35 U.S.C. 112: The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor of carrying out his invention. Claim 8 is rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the written description requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor or a joint inventor, or for applications subject to pre-AIA 35 U.S.C. 112, the inventor(s), at the time the application was filed, had possession of the claimed invention. Claim 8 recites “a flexible duct extending upwardly from the first fan”. However claim 1 also recites “a first duct extending upwardly from the first fan”. These two limitations claim that the system has two ducts that together extend from the first fan. However the original specification does not disclose that two ducts (one is flexible) extending from one fan. Figure 4 shows only one flexible duct 140 extending from one fan 130, and any one of the fans 130 is connected to only one duct. Therefore the limitation of claim 8 is a new matter limitation. The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claim 8 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 8 recites “a flexible duct extending upwardly from the first fan”. However claim 1 also recites “a first duct extending upwardly from the first fan”. It’s not clear if the limitation of claim 8 means the flexible duct is the same duct as the first duct, or if it means the flexible duct is another duct. Examiner recommend applicant to amend claim 8 to “The system of claim 1, wherein the first duct is a flexible duct configured to be adjustable in height and orientation.” Response to Arguments Applicant’s arguments with respect to claim(s) 1 have been considered but are moot. Claim 1 incorporated allowable subject matter. Allowable Subject Matter Claims 1-7 and 9-21 are allowed. 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 KO-WEI LIN whose telephone number is (571)270-7675. The examiner can normally be reached M-F 6:30-2:30 Eastern Time. 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, Steve McAllister can be reached at (571)272-6785. 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. /KO-WEI LIN/Primary Examiner, Art Unit 3762
Read full office action

Prosecution Timeline

Jun 14, 2023
Application Filed
Oct 24, 2025
Non-Final Rejection — §112
Jan 21, 2026
Response Filed
Mar 11, 2026
Final Rejection — §112 (current)

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

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Prosecution Projections

3-4
Expected OA Rounds
76%
Grant Probability
96%
With Interview (+20.5%)
3y 2m
Median Time to Grant
Moderate
PTA Risk
Based on 806 resolved cases by this examiner. Grant probability derived from career allow rate.

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