Office Action Predictor
Last updated: April 15, 2026
Application No. 18/449,542

COLLET BUSH AND TOOL DRIVING DEVICE

Non-Final OA §102§103
Filed
Aug 14, 2023
Examiner
SALONE, BAYAN
Art Unit
3726
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Subaru Corporation
OA Round
1 (Non-Final)
76%
Grant Probability
Favorable
1-2
OA Rounds
2y 9m
To Grant
82%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allow Rate
603 granted / 795 resolved
+5.8% vs TC avg
Moderate +6% lift
Without
With
+5.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
22 currently pending
Career history
817
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
48.2%
+8.2% vs TC avg
§102
30.6%
-9.4% vs TC avg
§112
18.5%
-21.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 795 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 . 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) 1-3, 5, 8 and 9 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Fritsche et al. (US 2008/0145160 A1). Re Claim 1, Fritsche discloses a collet bush 12 to be inserted into a concentric collet 14 that is attached to a handheld tool driving device (not shown; Pars. 0019 and 0020) in order to position the tool driving device to a workpiece, the tool driving device holding, rotating and feeding a tool, the tool driving device having a holder for holding the tool, and a motor for rotating the holder, the tool driving device having a function 30 to suck chips (Pars. 0019-0021, 0031 and 0034, Figs. 1 and 4), the collet bush 12 having: a tapered cylindrical outer surface for expanding the concentric collet 14 (Par. 0020); a cylindrical inner surface forming a through hole for slidably fitting the tool; and a flow path for taking in air used for sucking the chips inside the collet bush 12 (Pars. 0020-0024 and 0031-0039, Figs. 1-4). Re Claim 2, Fritsche discloses the flow path includes at least one through hole formed between the outer surface and the inner surface (See figures 1 and 4). Re Claim 3, Fritsche discloses an end portion, on a distal side of the collet bush 12, of the at least one through hole is widened by chamfering a periphery of the end portion of the at least one through hole (See figures 1 and 4). Re Claim 5, Fritsche discloses the tool driving device comprising: the collet bush 12 according to claim 1; and the concentric collet 14 (Pars. 0020-0023, Figs. 1 and 4). Re Claim 8, Fritsche discloses the tool driving device comprising: the collet bush 12 according to claim 2; and the concentric collet 14 (Pars. 0020-0023, Figs. 1 and 4). Re Claim 9, Fritsche discloses the tool driving device comprising: the collet bush 12 according to claim 3; and the concentric collet 14 (Pars. 0020-0023, Figs. 1 and 4). 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) 4, 6, 7 and 10-12 is/are rejected under 35 U.S.C. 103 as being unpatentable over Fritsche et al. (US 2008/0145160 A1), in view of (JP S63-64415, herein referenced by the English Machine Translation). Re Claims 4, 6 and 7, Fritsche does not explicitly disclose a buffer material having recesses in a central axis direction of the collet bush, the buffer material being attached to an annular end face, on a distal side, of the collet bush, the flow path including the recesses. S63-64415 discloses a collet bush 1; said collet bush having: a tapered cylindrical outer surface (See figures 2 and ); a cylindrical inner surface forming a through hole for slidably fitting the tool A; and a flow path for taking in air used for sucking chips inside the collet bush 1 (See figure 4); the collet bush 1 further comprising: a buffer material 2 having recesses 2b in a central axis direction of the collet bush 1, the buffer material 2 being attached to an annular end face, on a distal side, of the collet bush 1, the flow path including the recesses 2b (Description; Pages 1-2, Figs. 1-4). It would have been obvious to one of ordinary skill in the art to modify the Invention of Fritsche by providing a buffer material having recesses in a central axis direction of the collet bush, as disclosed by S63-64415, for the benefit of more easily collecting debris or chips formed during drilling applications. Re Claims 10-12, the combination as applied to claims 4, 6 and 7 remains as previously applied. The combination discloses the tool driving device comprising: the collet bush 12 according to claims 4, 6 and 7; and the concentric collet 14 (See Fritsche, Pars. 0020-0023, Figs. 1 and 4). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to BAYAN SALONE whose telephone number is (571)270-7739. The examiner can normally be reached M-F 9-60 PM. 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, David Bryant can be reached at (571)272-4526. 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. /BAYAN SALONE/Primary Examiner, Art Unit 3726
Read full office action

Prosecution Timeline

Aug 14, 2023
Application Filed
Dec 04, 2025
Non-Final Rejection — §102, §103
Mar 24, 2026
Response Filed

Precedent Cases

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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
76%
Grant Probability
82%
With Interview (+5.9%)
2y 9m
Median Time to Grant
Low
PTA Risk
Based on 795 resolved cases by this examiner. Grant probability derived from career allow rate.

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