Prosecution Insights
Last updated: April 19, 2026
Application No. 18/175,237

PROCESSING TOOL

Non-Final OA §102§103
Filed
Feb 27, 2023
Examiner
ADDISU, SARA
Art Unit
3722
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Sugino Machine Limited
OA Round
1 (Non-Final)
85%
Grant Probability
Favorable
1-2
OA Rounds
2y 11m
To Grant
96%
With Interview

Examiner Intelligence

Grants 85% — above average
85%
Career Allow Rate
673 granted / 791 resolved
+15.1% vs TC avg
Moderate +11% lift
Without
With
+10.8%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
19 currently pending
Career history
810
Total Applications
across all art units

Statute-Specific Performance

§103
37.4%
-2.6% vs TC avg
§102
34.0%
-6.0% vs TC avg
§112
25.9%
-14.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 791 resolved cases

Office Action

§102 §103
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/Restrictions Applicant’s election without traverse of Claims 1-20 in the reply filed on 10/9/25 is acknowledged. 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 – Claims 1, 3, 8, 11-14 and 20 are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Ishi (USP 5,934,846). Regarding claims 1, 14 and 20, Ishi discloses a processing tool, comprising: a body; a spindle (2) rotatably supported by the body, the spindle including a tool holder holding hole (3) having an opening toward distal end, the tool holder holding hole extending along the spindle (figures 4), and a first anti-rotation body holding hole (6) radially penetrating the spindle, a tool holder (4) detachably inserted into the tool holder holding hole, the tool holder including a first anti-rotation groove (9) located on an outer surface of the tool holder to which a tool is attached (figure 1); an anti-rotation body (7) held in the first anti-rotation body holding hole (6); a cover (8) disposed at a distal end portion of the spindle, the cover configured to reciprocate along the spindle between a processing position and a detachable position, the cover located at the processing position configured to have the anti-rotation body (7) protrude in the first anti-rotation groove (9), and the cover located at the detachable position configured to accommodate the anti-rotation body (figure 1 and col. 4, lines 9-19); and an elastic member (13) disposed between the tool holder and the tool holder holding hole to urge the tool holder toward distal end (figure 1). Regarding claims 3 and 20, Ishi discloses wherein the cover includes a pressing surface configured to cover the first anti-rotation body holding hole at the processing position, and a relief portion (10) located on an inner surface of the cover, the relief portion being recessed radially outward, the anti-rotation body received between the first anti-rotation body holding hole and the first anti-rotation groove when the cover is located at the processing position (figure 5), and the anti-rotation body is accommodated in the relief portion when the cover is located at the detachable position and the tool holder is removed from the tool holder holding hole (figure 5). Regarding claim 8, Ishi discloses wherein the first anti-rotation groove (9) extends parallel to the spindle (figure 1). Regarding claim 11, Ishi discloses a rotating spindle (2) and although silent, there is a motor disposed in the body to rotate the spindle. Regarding claims 12 and 13, see figures 4 and 5. 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 2 and 15 are rejected under 35 U.S.C. 103 as being unpatentable over Ishi (USP 5,934,846). Ishi discloses all aspects of the invention as set forth in the above rejection. Regarding claim 2, Ishi does not explicitly disclose packaging/seal, however, Examiner takes Official Notice that it is old and well known in the machining art to have packaging/seal at the interference of movable parts to improve sealing. Regarding claim 15, Ishi discloses wherein the cover includes a pressing surface configured to cover the first anti-rotation body holding hole at the processing position, and a relief portion (10) located on an inner surface of the cover, the relief portion being recessed radially outward, the anti-rotation body received between the first anti-rotation body holding hole and the first anti-rotation groove when the cover is located at the processing position (figure 5), and the anti-rotation body is accommodated in the relief portion when the cover is located at the detachable position and the tool holder is removed from the tool holder holding hole (figure 5). Claims 6, 7, 18 and 19 are rejected under 35 U.S.C. 103 as being unpatentable over Ishi (USP 5,934,846) in view of Abbott (US Pub. No. 2021/0308842). Ishi discloses all aspects of the invention as set forth in the above rejection. Regarding claims 6, 18 and 19, Ishi does not disclose the spindle including a first retaining ring groove located on an outer surface of a distal end portion of the spindle nor a retaining ring disposed in the first retaining ring groove to retain the cover at the processing position when located in the first retaining ring groove. Abbott discloses a rotary tool having a cover (78), retaining ring (110) disposed in a retaining ring groove (figure 3). Abbott also discloses a retaining ring, a friction ring (e.g., a ring of elastomeric material), projecting pin, or any other suitable means may be provided to limit forward and/or rearward movement (paragraph 27). Therefore, it would have been obvious to one of ordinary skill in the art at the time of the invention was made to include a retaining ring/groove to Ishi’s tool, as taught by Abbott for the purpose of limiting forward and/or rearward movement (paragraph 27). Regarding claim 7, it would have been obvious to one having ordinary skill in the art at the time the invention was made to have multiple retaining rings, since it has been held that mere duplication of the essential working parts of a device involves only routine skill in the art. St. Regis Paper Co. v. Bemis Co., 193 USPQ 8. Allowable Subject Matter Claims 4, 5, 9, 10, 16 and 17 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. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to SARA ADDISU at (571) 272-6082. The examiner can normally be reached on Monday - Friday 9:00 am - 5:00 pm (Mondays and Wednesday-Friday). If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Sunil K. Singh can be reached on (571) 272-3460. 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. /SARA ADDISU/Primary Examiner, Art Unit 3722 3/7/26
Read full office action

Prosecution Timeline

Feb 27, 2023
Application Filed
Mar 08, 2026
Non-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

1-2
Expected OA Rounds
85%
Grant Probability
96%
With Interview (+10.8%)
2y 11m
Median Time to Grant
Low
PTA Risk
Based on 791 resolved cases by this examiner. Grant probability derived from career allow rate.

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