Office Action Predictor
Last updated: April 15, 2026
Application No. 18/576,251

PUMP ASSEMBLY

Non-Final OA §102
Filed
Jan 03, 2024
Examiner
ANGWIN, DAVID PATRICK
Art Unit
3754
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Yonwoo Co., LTD.
OA Round
1 (Non-Final)
68%
Grant Probability
Favorable
1-2
OA Rounds
3y 5m
To Grant
64%
With Interview

Examiner Intelligence

Grants 68% — above average
68%
Career Allow Rate
287 granted / 420 resolved
-1.7% vs TC avg
Minimal -4% lift
Without
With
+-4.0%
Interview Lift
resolved cases with interview
Typical timeline
3y 5m
Avg Prosecution
5 currently pending
Career history
425
Total Applications
across all art units

Statute-Specific Performance

§101
0.9%
-39.1% vs TC avg
§103
36.2%
-3.8% vs TC avg
§102
24.5%
-15.5% vs TC avg
§112
36.3%
-3.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 420 resolved cases

Office Action

§102
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 . Election/Restriction Applicant’s election without traverse of Group I (claims 1-4) in the reply filed on 9/26/25 is acknowledged. Claims 5-14 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected species, there being no allowable generic or linking claim. The examiner notes that upon the finding of an allowable generic claim, all non-elected claims depending from the allowable generic claim will be considered for rejoinder. 35 USC § 102 Rejection 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. Claims 1-3 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Kim et al (KR 101233080). Regarding claim 1, Kim discloses a pump assembly comprising: a cylinder (130) having a suction port (opening at lower end) formed through the lower end thereof; a piston (150) ascended and descended inside the cylinder and having an inlet (152) formed through one side thereof; a seal cap (160) ascended and descended inside the cylinder, in a state of coming into close contact with the inner wall of the cylinder, to open and close the inlet; a stem (140, 141) coupled to the piston in such a way as to be ascended and descended together with the piston and having an outlet formed on top thereof; a cylinder cap (120) coupled to the upper side of the cylinder to surround the stem; a first elastic member (175) disposed between the seal cap and the stem inside the cylinder; and a second elastic member (145) disposed between the cylinder cap and the stem outside the cylinder. Regarding claim 2, in addition to the limitations in claim 1, Kim further discloses wherein the first elastic member is an elastic body (spring) having the shape of a post (spring shaped as cylinder) with a hollow portion formed therethrough in such a way as to surround at least one of the piston (175 surrounds 150) and the stem. Regarding claim 3, in addition to the limitations in claim 2, Kim further discloses wherein if the pump assembly is pressurized (stem depressed), the second elastic member is compressed to allow the piston and the stem to move down, so that as the first elastic member is compressed, the seal cap moves up relative to the piston to allow the inlet to be exposed (shown in third figure). Allowable Subject Matter Claim 4 is objected to as being dependent from a rejected claim, but would be allowable if rewritten in independent form. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to David P. Angwin whose telephone number is (571) 270-3735. The examiner can normally be reached on 7:30 AM - 5 PM (M-F). The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /DAVID P ANGWIN/Supervisory Patent Examiner, Art Unit 3754
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Prosecution Timeline

Jan 03, 2024
Application Filed
Jan 10, 2026
Non-Final Rejection — §102
Mar 30, 2026
Response Filed

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12583652
Sealing unit for a liquid container
2y 5m to grant Granted Mar 24, 2026
Patent 12540015
LIQUID PRODUCT DISPENSER WITH TAMPER RESISTANT OVERCAP
2y 5m to grant Granted Feb 03, 2026
Patent 12490841
Universal Chips Dispenser
2y 5m to grant Granted Dec 09, 2025
Patent 12421018
Manually Rechargeable and Reusable Aerosol Can and Method
2y 5m to grant Granted Sep 23, 2025
Patent 12409986
CAP ASSEMBLY AND DROPPER ASSEMBLY AS WELL AS CONTAINER SYSTEM INCLUDING THE SAME
2y 5m to grant Granted Sep 09, 2025
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
68%
Grant Probability
64%
With Interview (-4.0%)
3y 5m
Median Time to Grant
Low
PTA Risk
Based on 420 resolved cases by this examiner. Grant probability derived from career allow rate.

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