Prosecution Insights
Last updated: April 18, 2026
Application No. 17/112,270

MECHANICAL FASTENER DRIVE TOOL AND SYSTEM

Non-Final OA §103
Filed
Dec 04, 2020
Examiner
MAGAR, DIL KUMAR
Art Unit
3675
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Ar Developing LLC
OA Round
5 (Non-Final)
56%
Grant Probability
Moderate
5-6
OA Rounds
3y 3m
To Grant
75%
With Interview

Examiner Intelligence

Grants 56% of resolved cases
56%
Career Allow Rate
49 granted / 88 resolved
+3.7% vs TC avg
Strong +19% interview lift
Without
With
+19.3%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
46 currently pending
Career history
134
Total Applications
across all art units

Statute-Specific Performance

§103
59.8%
+19.8% vs TC avg
§102
27.2%
-12.8% vs TC avg
§112
10.5%
-29.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 88 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 . Specification The disclosure is objected to because of the following informalities: Newly filed amendment to specification of 02/05/2026 in page 3 has ‘diameter “D”’, but the drawing has diameter “TD”. Appropriate correction is required. Claim Rejections - 35 USC § 103 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 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. Claims 22-25 are rejected under 35 U.S.C. 103 as being unpatentable over Hasan et al., US5908278 (hereinafter, Hasan) in view of Nottelmann et al., US4948318 (hereinafter, Nottelmann). Regarding claim 22, Hasan teaches a fastener 24 having a lengthwise axis (fastener extending from head to tip vertically lengthwise axis), comprising: a hexagonal drive head 26; a shank 34 having a tip end 32, a tapered portion (see tapered portion between the tip end and the threaded portion), and a threaded portion 28 having a diameter (see diameter ‘T’ in Fig. 4), wherein the tapered portion extends from the tip end to the threaded portion (see Fig. 2); and a flange portion (see flanged portion attached to the head portion of the fastener) disposed between and contiguous with the hexagonal drive head and the shank (see Fig. 2); wherein the diameter (T) of the threaded portion of the shank is larger than a standard thread diameter associated with the standard United States hexagonal drive head size of the hexagonal drive head (see column 4, lines 1-7). Hasan fails to expressly teach that the hexagonal head is dimensioned according to a standard United States hexagonal drive head sizes in inches. However, it is the examiner’s position that changes in shape have been established to be obvious to one of ordinary skill in the art. Therefore, it would have been obvious matter of design choice to one having ordinary skill in the art before the effective filing date of claimed invention to modify the shape of the head to dimension as per standard United States sizes in inches as an obvious change in shape. Further, it is considered obvious to one having ordinary skill in the art to make the hexagonal shape of the head in inches, since Hasan teaches structural limitations of the claimed fastener. Further, Hasan teaches the tapered portion is configured with a self-threading/self-tapping thread type (column 4, lines 13-18), but fails to teach wherein the threaded portion is configured with a self-threading thread type However, Nottelmann teaches similar fastener having a self-tapping thread (see threaded shank 14). It would have been obvious to one of ordinary skill in the art before the effective filing date of claimed invention to have modified the threads of Hasan to be configured to self-threading thread type as taught by Nottelmann for easy self-drilling and tapping of building structure, and prevent loosening and hazards from using of multiple parts fasteners. Regarding claim 23, Hasan in view of Nottelmann teaches and/or make obvious of the fastener of claim 22, but fails to teach wherein the standard United States hexagonal drive head size of the hexagonal head is a 5/16 inch hexagon, and the diameter of the threaded portion of the shank is the standard diameter for a standard United States 9/16 inch hexagonal drive head size. However, change in size have been established to be obvious to a person of ordinary skill in the art in the absence of a persuasive evidence that the particular configuration was significant. The disclosure does not provide any evidence of the criticality of the constant diameter portion of the shank is the standard diameter for the standard United States 9/16 inch hexagonal drive head size. Therefore, it would have been obvious matter of design choice to one having ordinary skill in the art before the effective filing date of claimed invention to modify the dimension of hexagonal head drive head to 5/16 in and shank diameter to standard diameter 9/16 inch as an obvious change in shape and size. Regarding claim 24, Hasan in view of Nottelmann teaches and/or make obvious of the fastener of claim 22, wherein Hasan further teaches the flange portion (see flanged portion attached to the bottom of the head portion 26) extends radially outward a distance greater than the drive head (see size of the head 26) and the constant diameter (T). Regarding claim 25, Hasan in view of Nottelmann teaches and/or make obvious of the fastener of claim 22, wherein the standard United States hexagonal drive head size of the hexagonal head is a 5/16 inch hexagon, and the constant diameter of the threaded portion of the shank has a 3/8 inch diameter. However, change in size have been established to be obvious to a person of ordinary skill in the art in the absence of a persuasive evidence that the particular configuration was significant. The disclosure does not provide any evidence of the criticality of the constant diameter portion of the shank is the standard diameter for the standard United States 9/16 inch hexagonal drive head size. Therefore, it would have been obvious matter of design choice to one having ordinary skill in the art before the effective filing date of claimed invention to modify the dimension of hexagonal head drive head to 5/16 in and shank diameter to standard diameter 3/8 inch as an obvious change in shape and size. Response to Arguments Applicant’s arguments, filed 02/05/2026, with respect to claim(s) 22-25 have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to DIL K MAGAR whose telephone number is (571)272-8180. The examiner can normally be reached M-F 7:30-5:30. 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, Christine Mills can be reached at (571) 272-8322. 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. /DIL K. MAGAR/Examiner, Art Unit 3675 /CHRISTINE M MILLS/Supervisory Patent Examiner, Art Unit 3675
Read full office action

Prosecution Timeline

Dec 04, 2020
Application Filed
Jul 07, 2023
Non-Final Rejection — §103
Jan 15, 2024
Response Filed
Apr 05, 2024
Final Rejection — §103
Oct 15, 2024
Response after Non-Final Action
Oct 15, 2024
Request for Continued Examination
Oct 16, 2024
Response after Non-Final Action
Nov 16, 2024
Non-Final Rejection — §103
Mar 03, 2025
Applicant Interview (Telephonic)
Mar 03, 2025
Examiner Interview Summary
Apr 14, 2025
Response Filed
Jul 24, 2025
Final Rejection — §103
Feb 05, 2026
Request for Continued Examination
Feb 26, 2026
Response after Non-Final Action
Mar 25, 2026
Non-Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12571420
MULTI-PIECE LOCKING FASTENER ASSEMBLY SUCH AS FOR SECURING A WHEEL RIM TO A VEHICLE HUB
2y 5m to grant Granted Mar 10, 2026
Patent 12553550
TENSIONER AND METHOD OF USING SAME
2y 5m to grant Granted Feb 17, 2026
Patent 12551992
FASTENER SYSTEM WITH STABILIZER RIBS AND SQUARE DRIVE
2y 5m to grant Granted Feb 17, 2026
Patent 12546357
BREAKAWAY THREADED FASTENERS
2y 5m to grant Granted Feb 10, 2026
Patent 12533917
RETAINING RING, ARRANGEMENT AND METHOD FOR INSTALLING THE RETAINING RING
2y 5m to grant Granted Jan 27, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

5-6
Expected OA Rounds
56%
Grant Probability
75%
With Interview (+19.3%)
3y 3m
Median Time to Grant
High
PTA Risk
Based on 88 resolved cases by this examiner. Grant probability derived from career allow rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month