Prosecution Insights
Last updated: October 26, 2026
Application No. 19/304,845

REKEYABLE LOCK CYLINDER

Non-Final OA §102
Filed
Aug 20, 2025
Priority
Jan 10, 2023 — provisional 63/438,075 +1 more
Examiner
BOSWELL, CHRISTOPHER J
Art Unit
3675
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Assa Abloy AB
OA Round
1 (Non-Final)
68%
Grant Probability
Favorable
1-2
OA Rounds
1y 5m
Est. Remaining
94%
With Interview

Examiner Intelligence

Grants 68% — above average
68%
Career Allowance Rate
787 granted / 1165 resolved
+15.6% vs TC avg
Strong +26% interview lift
Without
With
+26.0%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
17 currently pending
Career history
1187
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
30.5%
-9.5% vs TC avg
§102
48.7%
+8.7% vs TC avg
§112
14.0%
-26.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1165 resolved cases

Office Action

§102
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 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. 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) 12, 14, and 16-20 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by U.S. Patent Number 7,836,739 to Huang et al. Huang et al. disclose a rekeyable lock cylinder comprising: a cylinder body (10) having an inner surface defining a shear line and an opposite outer surface, the cylinder body includes a chimney (12) projecting radially outward from the outer surface and housing a plurality of pins (31) biased towards the inner surface of the cylinder body and extending across the shear line; and a plug assembly (20) disposed at least partially within the cylinder body and selectively rotatable therein around a longitudinal axis, the plug assembly including: a plug body (21) having a plug face defining a keyway opening (214) extending into the plug body along the longitudinal axis, the keyway opening being sized and shaped to receive at least a first key having a first plurality of key cut positions and a second key having a second plurality of key cut positions different from the first plurality of key cut positions; a plurality of key followers (322) mounted on the plug body, the plurality of key followers spaced along the longitudinal axis and slidably movable in a transverse direction relative to the plug body, each of the plurality of key followers having at least one rack engagement feature (3221); and a plurality of racks (321), each rack corresponding to a different one of the plurality of key followers, each of the plurality of racks having a key follower engagement feature (3212) and being selectively engageable with the at least one rack engagement feature of the corresponding key follower at a plurality of different bitting positions corresponding to different key cut heights, wherein disengagement of the key follower engagement feature from the at least one rack engagement feature allows rekeying between different keys without removing the plug assembly from the cylinder body (figure 13); wherein, when the plurality of racks is engaged with the plurality of key followers at a predetermined bitting position of at least six different bitting positions corresponding to the first plurality of key cut positions of the first key, insertion of the first key positions the plurality of racks in alignment with the plurality of pins in the chimney to remove the plurality of pins from the shear line and enable rotation of the plug assembly within the cylinder body (column 5, line 62-column 7, line 6), as in claim 12. Huang et al. also disclose when the plurality of racks is engaged with the plurality of key followers at the predetermined bitting position, insertion of the second key enables rotation of the plug assembly within the cylinder body (the racks set to the bitting of the second key, allowing for proper effectuation of the lock and second key), as in claim 14, wherein each of the plurality of key followers are spring biased and positionable within the plug body based on a height of a corresponding key cut position for either the first key or the second key when received within the keyway opening (via 323), as in claim 17, as well as the chimney defines a plurality of channels (12a), each channel slidably supports a corresponding pin of the plurality of pins, and wherein each pin is individually biased via a biasing member disposed within the channel (shown in figure 1), as in claim 18, further comprising a cover retaining the plurality of pins and the corresponding biasing members within the respective channel (top plate shown in figure 1), as in claim 19. Huang et al. further disclose the plurality of racks is engaged with the plurality of key followers at the predetermined bitting position of the at least six different bitting positions corresponding to the first plurality of key cut positions of the first key, insertion of the second key misaligns at least one of the plurality of racks from the corresponding pin of the plurality of pins in the chimney to retain the pin in a position across the shear line (an incorrect key would not place the respective pins in alignment with the shear line, thus the pins would be positioned across the shear line), as in claim 20, as well as the first key (50) is a master key and the second key (60) is a user key, as in claim 16. Allowable Subject Matter Claims 2-11 are allowed. Claims 13, 15 and 21 are objected to as being dependent upon a rejected base claim but would be allowable if rewritten in independent form including all the limitations of the base claim and any intervening claims. The following is a statement of reasons for the indication of allowable subject matter: The claims are allowable over the prior art of record because the teachings of the references taken as a whole do not teach or render obvious the combination set forth, including that of a first carrier subassembly selectively engageable with the at least one key follower and configured to control component movement across the first shear plane, wherein the first carrier subassembly is rekeyable between different master keys without removing the plug assembly from the cylinder body; and a second carrier subassembly selectively engageable with the at least one key follower and configured to control component movement across the second shear plane, the second carrier subassembly allows the plug assembly to rotate relative to the inner sleeve that is coupled to the cylinder body, and wherein the second carrier subassembly is rekeyable between different user keys without removing the plug assembly from the cylinder body; and the plug face further defines a tool opening disposed to the right of the keyway opening. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. The following patents are cited to further show the state of the art with respect to lock cylinders: U.S. Patent Number 8,056,378 to Huang et al.; U.S. Patent Number 7,526,935 to Huang et al.; U.S. Patent Number 6,119,495 to Loretti; U.S. Patent Number 5,176,015 to Sussina; U.S. Patent Number 4,712,399 to Mattossovich; U.S. Patent Number 3,667,262 to Hill. Any inquiry concerning this communication or earlier communications from the examiner should be directed to CHRISTOPHER J BOSWELL whose telephone number is (571)272-7054. The examiner can normally be reached M-R: 9-4; F 9-12. 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, Kristina Fulton can be reached at 571-272-7376. 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 J BOSWELL/ Primary Examiner, Art Unit 3675 CJB /cb/ September 9, 2026
Read full office action

Prosecution Timeline

Aug 20, 2025
Application Filed
Sep 11, 2026
Non-Final Rejection mailed — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12768197
LOCK
4y 1m to grant Granted Oct 20, 2026
Patent 12760558
REKEYABLE LOCK CYLINDER
2y 2m to grant Granted Oct 13, 2026
Patent 12753634
CYLINDER LOCK AND DOOR
2y 4m to grant Granted Oct 06, 2026
Patent 12742342
KEY AND KEY BLANKS OPERABLE IN VERTICALLY AND HORIZONTALLY ORIENTED KEYWAYS
2y 0m to grant Granted Sep 22, 2026
Patent 12742341
CYLINDER DRY LOCK ASSEMBLY
1y 6m to grant Granted Sep 22, 2026
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
94%
With Interview (+26.0%)
2y 8m (~1y 5m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1165 resolved cases by this examiner. Grant probability derived from career allowance rate.

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