Prosecution Insights
Last updated: April 19, 2026
Application No. 18/675,324

Cold Temperature Potable Water Tank System and Device

Non-Final OA §102§103
Filed
May 28, 2024
Examiner
NICHOLS, PHYLLIS M
Art Unit
3753
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Holmwood Highgate (Aust) Pty Ltd.
OA Round
1 (Non-Final)
79%
Grant Probability
Favorable
1-2
OA Rounds
2y 7m
To Grant
99%
With Interview

Examiner Intelligence

Grants 79% — above average
79%
Career Allow Rate
651 granted / 821 resolved
+9.3% vs TC avg
Strong +20% interview lift
Without
With
+19.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
13 currently pending
Career history
834
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
38.8%
-1.2% vs TC avg
§102
36.9%
-3.1% vs TC avg
§112
19.7%
-20.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 821 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 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 person shall be entitled to a patent unless – (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(s) 1 and 15 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Masters (US 4207647). Regarding claims 1 and 15, Masters teaches a water tank subsystem 10 (fig. 1; also see Abstract for “water”) positionable on either a trailer chassis subsystem 11 or a skid subsystem, wherein the water tank subsystem comprises a freeze prevention subsystem (drainage; see col. 7 lines 10-20 regarding freezing); and a fastener subsystem for securely connecting the trailer chassis subsystem or the skid subsystem to the water tank subsystem (platform shown at the base of tank is fastener); wherein the water tank subsystem comprises a top hatch 15 and a vent 24. Claim(s) 16 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Kahle (US 20220018135). Kahle teaches a cold weather add-on kit comprising a freeze prevention control panel and a heating element; and thermal insulation (abstract; fig. 11 shows kit; para. 0070 for thermal insulation). 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) 8 is/are rejected under 35 U.S.C. 103 as being unpatentable over Masters (US 4207647) in view of CN 105020893. Regarding claim 8, Masters teaches all claimed features, but fails to disclose the tank having a coating of sheet metal. CN 105020893 teaches a tank including a coating of sheet metal (claims. It would have been obvious to one of ordinary skill in the art, at the time of invention, to employ in Masters a coating of sheet metal, as taught by CN 105020893 , for the purpose of strengthen and protecting the tank. Allowable Subject Matter Claims 2-7, 9-14, 17, and 18 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. The following is a statement of reasons for the indication of allowable subject matter: Masters fails to disclose a cold weather add-on kit comprising a freeze prevention control panel and a heating element; the freeze prevention subsystem comprises thermal insulation between the tank and sheet metal coating; the fastener subsystem comprises a tank mount pad, a vessel mount and a frame mount pad; the water tank subsystem comprises an internal lateral baffle. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Modak teaches a water tank with drainage. Any inquiry concerning this communication or earlier communications from the examiner should be directed to P. MACADE NICHOLS whose telephone number is (571)270-5428. The examiner can normally be reached Mon-Fri 9:00-5:00 P.M.. 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, Kenneth Rinehart can be reached at 571-272-4881. 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. /P. MACADE NICHOLS/Primary Examiner, Art Unit 3753
Read full office action

Prosecution Timeline

May 28, 2024
Application Filed
Jan 10, 2026
Non-Final Rejection — §102, §103 (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

1-2
Expected OA Rounds
79%
Grant Probability
99%
With Interview (+19.9%)
2y 7m
Median Time to Grant
Low
PTA Risk
Based on 821 resolved cases by this examiner. Grant probability derived from career allow rate.

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