Prosecution Insights
Last updated: April 17, 2026
Application No. 18/399,962

DRUMHEAD ASSEMBLY

Non-Final OA §103
Filed
Dec 29, 2023
Examiner
LOCKETT, KIMBERLY R
Art Unit
2837
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
unknown
OA Round
2 (Non-Final)
83%
Grant Probability
Favorable
2-3
OA Rounds
2y 0m
To Grant
93%
With Interview

Examiner Intelligence

Grants 83% — above average
83%
Career Allow Rate
969 granted / 1172 resolved
+14.7% vs TC avg
Moderate +11% lift
Without
With
+10.7%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 0m
Avg Prosecution
25 currently pending
Career history
1197
Total Applications
across all art units

Statute-Specific Performance

§101
0.7%
-39.3% vs TC avg
§103
46.0%
+6.0% vs TC avg
§102
20.9%
-19.1% vs TC avg
§112
25.2%
-14.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1172 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 . 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 1 is rejected under 35 U.S.C. 103 as being unpatentable over Yunbin (20130312585) in view of Rose (US 4254685). Regarding claim 1, Yunbin et al discloses the use of a drumhead assembly, including: a drumhead (1) made of a mesh material and having a striking surface (paragraph 0022). Yunbin does not disclose the specific use of a ring. Rose discloses that the use of a ring member(15), disposed on a side of the drumhead opposite to the striking surface (figure 1), the ring member being made of an incompressible plastic material (column 3, line 1). Rose further discloses wherein a thickness of the drumhead is larger than a thickness if the ring member (column 3, lines 10-15 and 58-68, column 4, lines 1-5). It would have been obvious to one of ordinary skill in the art prior to the effective filing date to modify the device as the device as disclosed in Yunbin to include the plastic ring as disclosed in Rose and the use of an incompressible plastic as recited by the applicant and a specific thickness in order to provide a rim with a snug fit, that is sturdy and maintains its shape. Claims 2, 3, 4, and 9 are rejected under 35 U.S.C. 103 as being unpatentable over Yunbin (20130312585) in view of Rose (US 4254685) and Adinolfi (US621053). Yunbin and Rose do not disclose a ring member disposed between the drumhead and a drum shell. Regarding claim 2, Adinolfi discloses that the use of ring members is conventional (column 1, line 51)l, the ring member being in surface contact with the drumhead and partially covering a drumhead; and the ring member being configured to be disposed between the drumhead (see figure 3) and a drum shell are conventional and well known connections in the art. Yunbin and Rose do not discloses a ring member covering a plurality of meshes. However, it would have been obvious to one of ordinary skill in the art prior to the effective filing date to modify the device as disclosed in Yunbin to include the plastic ring as disclosed in Rose, the use of an incompressible plastic as recited by the applicant, and the ring member covering a mesh drumhead as disclosed in Adinolfi since the use of ring members covering a drumheads is conventional and well known in the art. Regarding claim 3, Adinolfi discloses wherein the incompressible plastic material includes polyethylene terephthalate (PET) (column 2, lines 14 and 15). Regarding claim 4, Yunbin et al discloses the use of a drumhead assembly, including: a drumhead (1) made of a mesh material and having a striking surface (paragraph 0022). Yunbin does not disclose the specific use of a ring. Rose discloses that the use of a ring member(15), disposed on a side of the drumhead opposite to the striking surface (figure 1), the ring member disposed in a side of the drumhead opposite to the striking surface, the ring member being made of an incompressible plastic material (column 3, line 1); wherein a thickness of the ring member is between .1 mm and .3 mm (column 3, lines 10-15 and 58-68, column 4, lines 1-5). It would have been obvious to one of ordinary skill in the art prior to the effective filing date to modify the device as the device as disclosed in Yunbin to include the plastic ring as disclosed in Rose and the use of an incompressible plastic as recited by the applicant and a specific thickness in order to provide a drum that can be played without striking the drum rim. Regarding claim 9, further including a frame member (22) being annular, wherein the frame (22) member is disposed around the drumhead. Adinolfi further discloses that ring members are conventional in the art (column 1, lines 50-55). Yunbin, Rose, and Adinolfi do not show a frame member integrally connecting a drumhead with the ring member. However, it would have been obvious to one of ordinary skill in the art prior to the effective filing date to modify the device as disclosed in Yunbin to include the plastic ring as disclosed in Rose, the use of an incompressible plastic as recited by the applicant and the frame member integrally connecting a drumhead with the ring member since frame members are a well-known means of connecting a drumhead to a ring member. Claims 6 and 8 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. Claims 5 and 10 allowed. Response to Arguments The indicated allowability of claims 4 and 7 is withdrawn in view of the newly discovered reference. Rejections based on the newly cited reference(s) are above. Any inquiry concerning this communication or earlier communications from the examiner should be directed to KIMBERLY R LOCKETT whose telephone number is (571)272-2067. The examiner can normally be reached 8:30-5:00 pm M-F. 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, Dedei Hammond can be reached at 571-270-7938. 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. /KIMBERLY R LOCKETT/Primary Examiner, Art Unit 2837
Read full office action

Prosecution Timeline

Dec 29, 2023
Application Filed
Sep 30, 2025
Non-Final Rejection — §103
Dec 23, 2025
Response Filed
Apr 01, 2026
Non-Final Rejection — §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

2-3
Expected OA Rounds
83%
Grant Probability
93%
With Interview (+10.7%)
2y 0m
Median Time to Grant
Moderate
PTA Risk
Based on 1172 resolved cases by this examiner. Grant probability derived from career allow rate.

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