Prosecution Insights
Last updated: April 19, 2026
Application No. 18/079,868

ADJUSTABLE FLIP STOP

Final Rejection §102§103
Filed
Dec 12, 2022
Examiner
HALL JR, TYRONE VINCENT
Art Unit
3723
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Hui-Chuan Liao
OA Round
2 (Final)
76%
Grant Probability
Favorable
3-4
OA Rounds
2y 8m
To Grant
99%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allow Rate
705 granted / 921 resolved
+6.5% vs TC avg
Strong +23% interview lift
Without
With
+23.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
46 currently pending
Career history
967
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
44.2%
+4.2% vs TC avg
§102
32.7%
-7.3% vs TC avg
§112
19.6%
-20.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 921 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) 1-10 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Duginske US 5617909. PNG media_image1.png 411 534 media_image1.png Greyscale PNG media_image2.png 332 256 media_image2.png Greyscale Duginske discloses an adjustable flip stop comprising: a body (24) having a fixing hole (see Fig. 29); a fixing component having a bolt (84) mounted through the fixing hole of the body and having a bolt head (bottom see Fig. 29) being containable in an interior of a T-track (36); and a nut (58) configured to be threaded with the bolt to locate the body between the bolt head of the bolt and the nut; and a flip arm (10) having a connecting element (10) pivotally connected to the body; an arm body (34) having a longitudinal direction; a top end and a bottom end (top and bottom of track, 34) being opposite to each other in the longitudinal direction; and an adjusting element (58,84) configured to be combined with the connecting element (10) and configured to be combined at different positions (slidable via slot 36, see col. 9, lines 15-25 and col. 11, lines 23-28 and Figs. 8-10, head of bolt 84 engages slot 36 of track 34 for adjustment) of the arm body (34) in the longitudinal direction to adjust a distance between the bottom end of the arm body (34) and the body (24) and to make the arm body and the connecting element fixed with respect to each other. As for claim 2, Duginske discloses wherein the arm body (34) has an elongated hole (slot 36) extending along the longitudinal direction of the arm body; the connecting element (10) has a combining hole (16); and the adjusting element (58, 84) is configured to be mounted through any position in the elongated hole, be combined with the connecting element via the combining hole of the connecting element, and clamp the arm body with the connecting element (see Fig. 8). As for claim 3, Duginske discloses wherein the flip arm has a filling washer (60); and the adjusting element (58, 84) is configured to be mounted through a through hole of the filling washer (60) and the elongated hole (36) of the arm body (34) and to be mounted in the combining hole (16) of the connecting element to make the filling washer clamped by the arm body and the adjusting element (see Fig. 8). As for claims 4-5, Duginske discloses wherein the adjusting element (58, 84) is a knob screw (58); and the combining hole (16) of the connecting element is a screw hole (hole, 16 allows for a screw/bolt to be inserted through). As for claim 6-10, Duginske discloses (see Fig. 9) wherein the adjustable flip stop has a pivot component (64, 68) and a washer (60); the pivot component is mounted through the connecting element, the washer, and the body and allows the connecting element to be pivotally connected to the body; and the washer is clamped between the connecting element and the body. Claim(s) 1-2 and 11-12 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Robert US 5443554. Robert discloses an adjustable flip stop comprising: a body (7,8) having a fixing hole (not labeled); a fixing component having a bolt (9) mounted through the fixing hole of the body and having a bolt head (bottom not shown, as known in the art) being containable in an interior of a T-track (4, 5); and a nut (top of 9) configured to be threaded with the bolt to locate the body between the bolt head of the bolt and the nut; and a flip arm having a connecting element (25) pivotally connected to the body; an arm body (32) having a longitudinal direction; and a top end and a bottom end being opposite to each other in the longitudinal direction; and an adjusting element (34) configured to be combined with the connecting element and configured to be combined at different positions (slidable via slot 32’) of the arm body in the longitudinal direction to adjust a distance between the bottom end of the arm body and the body and to make the arm body and the connecting element fixed with respect to each other. PNG media_image3.png 497 574 media_image3.png Greyscale As for claim 2, Robert discloses wherein the arm body has an elongated hole (32’) extending along the longitudinal direction of the arm body; the connecting element (25) has a combining hole (not shown); and the adjusting element (34) is configured to be mounted through any position in the elongated hole, be combined with the connecting element via the combining hole of the connecting element, and clamp the arm body with the connecting element (see Figs. 3-4 and 6). As for claims 11 and 12, Roberts discloses wherein the arm body (32) has two opposite ends in the longitudinal direction; and the adjustable flip stop has a fence-abutting block (19) detachably mounted on one of the two opposite ends of the arm body and being capable of abutting a fence (11) as the flip arm pivots relative to the body. 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) 3-10 and 13-15 is/are rejected under 35 U.S.C. 103 as being unpatentable over Robert US 5443554 in view of Duginske US 5617909. As for claim 3, Robert discloses all the limitations as recited above but does not specify wherein the flip arm has a filling washer; and the adjusting element is configured to be mounted through a through hole of the filling washer and the elongated hole of the arm body and to be mounted in the combining hole of the connecting element to make the filling washer clamped by the arm body and the adjusting element. However, the use of washers for connecting adjusting elements to provide bearing surfaces or distribute a force for a bolt are well known in the art as evidence by Duginske who teaches an adjustable flip-stop having a body (24) with a flip arm (10) having an adjusting element (58, 84) configured to be mounted through a through hole of a washer (60) and an elongated hole (36) of an arm body (34) and to be mounted in a combining hole (16) of the connecting element (10) to make the filling washer clamped by the arm body and the adjusting element. It would have been obvious to one of ordinary skill in the art, before the effective filing date, to modify the flip-stop of Robert to include a washer as taught by Duginske as a means to provide a bearing surface and/or distribute the force to clamp the adjusting element and arm body to the connecting element. As for claims 4-5, Duginske further teaches wherein the adjusting element (58, 84) is a knob screw (58); and the combining hole (16) of the connecting element is a screw hole (hole, 16 allows for a screw/bolt to be inserted through). It would have been obvious to modify the screw of Roberts to a knob screw as taught by Duginske as an alternative securing means. As for claims 6-10, Robert discloses a pivot rod (10) but does not specify a washer. Duginske further teaches (see Fig. 9) wherein the adjustable flip stop has a pivot component (64, 68) and a washer (60); the pivot component is mounted through the connecting element, the washer, and the body and allows the connecting element to be pivotally connected to the body; and the washer is clamped between the connecting element and the body. It would have been obvious to one of ordinary skill in the art, before the effective filing date, to modify the flip-stop of Robert to include a washer as taught by Duginske in order to provide a bearing surface for the pivoting component. As for claims 13-15, the modified Robert teaches wherein the arm body has two opposite ends in the longitudinal direction; and the adjustable flip stop has a fence-abutting block detachably mounted on one of the two opposite ends of the arm body and being capable of abutting a fence as the flip arm pivots relative to the body (see rejection of claims 11-12 above). Response to Arguments Applicant's arguments filed May 18, 2025 have been fully considered but they are not persuasive. Applicant argues that the prior art of Duginske US 5617909 nor Robert US 5443554 discloses the features in amended claim 1 of the present application (see remarks pg. 10). PNG media_image1.png 411 534 media_image1.png Greyscale The examiner respectfully disagrees. Applicant argues that the prior art of Duginske discloses a track (34) for mounting the base (24) and is not apart of the flip stop (see remarks, pg .10) The examiner respectfully disagrees with applicant’s interpretation. Duginske discloses in the written specification and in Figs. 8, 10 and 33 (see below Fig. 8) wherein a track (34) can be mounted to the flip stop to extend the stop down to the table and allow for other jigs, fixtures, hold downs and other accessories to be secured to the stop (col. 9, lines 15-25 and col. 11, lines 23-28). The track (34) is therefore capable of being a part of the adjustable flip stop whose distance can be adjusted via bolts (84) and capable of abutting a fence (72, 73) as claimed. The base (24) as applicant claims is connected to the T-track (34) PNG media_image4.png 464 490 media_image4.png Greyscale In regards to the prior art of Robert, Applicant has re-mapped the structure / reference numbers of Roberts to the claimed invention (see remarks, pg. 12), however, the original mapping and prior art rejection of the claims by the examiner still stands (see annotated figure below for further clarity). Applicant argues that the prior art of Robert fails to disclose “an adjustment element configured to be combined with a connecting element and configured to be combined at different positions of the arm body in the longitudinal direction to adjust a distance between the bottom end of the arm body and the body…”. The examiner respectfully disagrees, the prior art of Robert discloses an adjusting element (34) configured to be combined with a connecting element (25) and configured to be combined at different positions (slidable via slot 32’) of a arm body (32) in the longitudinal direction to adjust a distance between the bottom end of the arm body (32) and the body (7,8). The slot (32’) allows the arm body (32) to move in a longitudinal direction (up and down) thus adjusting the distance from the body (7,8) similar to applicant’s movement of the arm body distance (see applicant’s remarks, pg. 10 Fig. 6). PNG media_image3.png 497 574 media_image3.png Greyscale Conclusion THIS ACTION IS MADE FINAL. Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to TYRONE V HALL JR whose telephone number is (571)270-5948. The examiner can normally be reached Mon.-Fri. 7:30am-3:30pm. 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, Monica Carter can be reached at (571) 272-4475. 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. /TYRONE V HALL JR/Primary Examiner, Art Unit 3723
Read full office action

Prosecution Timeline

Dec 12, 2022
Application Filed
Feb 19, 2025
Non-Final Rejection — §102, §103
May 18, 2025
Response Filed
Aug 15, 2025
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

3-4
Expected OA Rounds
76%
Grant Probability
99%
With Interview (+23.1%)
2y 8m
Median Time to Grant
Moderate
PTA Risk
Based on 921 resolved cases by this examiner. Grant probability derived from career allow rate.

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