Prosecution Insights
Last updated: July 17, 2026
Application No. 18/150,419

ALIGNMENT SYSTEM FOR STATOR CORE

Final Rejection §103
Filed
Jan 05, 2023
Examiner
STEFANON, JUSTIN
Art Unit
2834
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Ford Motor Company
OA Round
2 (Final)
51%
Grant Probability
Moderate
3-4
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 51% of resolved cases
51%
Career Allowance Rate
95 granted / 186 resolved
-16.9% vs TC avg
Strong +48% interview lift
Without
With
+48.0%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
40 currently pending
Career history
238
Total Applications
across all art units

Statute-Specific Performance

§103
64.8%
+24.8% vs TC avg
§102
33.2%
-6.8% vs TC avg
§112
1.4%
-38.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 186 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 . Response to Arguments Applicant’s arguments with respect to claim(s) 1-8 and 16-20 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. Drawings The drawings were received on 02/04/2026. These drawings are acceptable. Claim Rejections - 35 USC § 103 The text of those sections of Title 35, U.S. Code not included in this action can be found in a prior Office action. Claims 1-8 and 16-20 are rejected under 35 U.S.C. 103 as being unpatentable over AN (US 20200204051) in view of SHIMOZU (US 20160156240). Regarding claim 1, AN discloses an alignment system for a stator core (11), the alignment system comprising: a hollow core shaft (15) defining a central axis of the stator core (11); an end plate (21) defining a central opening configured to receive the hollow core shaft (15); and an alignment tool (60) comprising: a central shaft (61) having an outer diameter smaller than an inner diameter of the hollow core shaft (15) such that a distal end (62) of the central shaft (61) is configured to be received in the hollow core shaft (15) and slide axially therein (see Fig. 5 and para [0058]); and an outer body (63) including a base portion (76), a support portion (73), and a push portion (72), the base portion (76) being coupled to a proximal end of the central shaft (61), the support portion (73) being spaced apart from the central shaft (61) and connecting the base portion (76) to the push portion (72), the push portion (72) being disposed about the central shaft (61) and having a lower surface configured to contact the end plate (21) when the hollow core shaft (15) is received in the central opening of the end plate (21) and the central shaft (61) is disposed within the hollow core shaft (15) (see Fig. 5 and 7); wherein when the central shaft (61) of the alignment tool (60) is disposed in the hollow core shaft (15) of the stator core (11), the lower surface of the push portion (72) defines a plane to which the central axis of the stator core (11) is normal (see Fig. 7), and wherein the lower surface is configured to align the end plate (21) with the plane such that axially sliding the central shaft (61) into the hollow core shaft (15) pushes the end plate (21) axially along the hollow core shaft (15) (see Fig. 7). PNG media_image1.png 544 822 media_image1.png Greyscale PNG media_image2.png 631 677 media_image2.png Greyscale However, AN does not disclose the support portion spaces the push portion from the base portion by a distance greater than an axial length of the hollow core shaft. SHIMOZU discloses a stator alignment jig with a support portion 53 that spaces a push portion 54 from a base portion 55 by a distance greater than an axial length of the hollow core shaft (Fig. 10E) PNG media_image3.png 156 245 media_image3.png Greyscale It 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 to provide the system of AN with the support portion spaces the push portion from the base portion by a distance greater than an axial length of the hollow core shaft, similar to SHIMOZU. A person having ordinary skill in the art to which the claimed invention pertains would have been motivated to make such modification in order to enable the push part to be removed from the distal end of the stator during assembly as taught by SHIMOZU, (para [0058]). Regarding claim 2, AN in view of SHIMOZU teaches the system of Claim 1, wherein AN teaches the alignment tool further comprises a leg (unlabeled; see annotated Fig. 5, below) extending radially outward from the lower surface of the push portion (72), the leg configured to contact the end plate (21). PNG media_image4.png 192 194 media_image4.png Greyscale Fig. 5 (annotated) PNG media_image5.png 512 481 media_image5.png Greyscale Regarding claim 3, AN in view of SHIMOZU teaches the system of Claim 1, wherein AN teaches the alignment tool further comprises a fastener (77) joining the proximal end of the central shaft (61) to the base portion (76). Regarding claim 4, AN in view of SHIMOZU teaches the system of Claim 1, wherein AN teaches a diameter of the central opening of the end plate (21) is within 0.040 millimeters of an outer diameter of the hollow core shaft (15) (the inner diameter of 21 at 21b “come into contact” with the outer diameter of 15; see para [0063] and Fig. 5). Regarding claim 5, AN in view of SHIMOZU teaches the system of Claim 1, wherein AN teaches the support portion (73) defines an opening (74) extending axially along the support portion (73) and radially through the support portion (73) (see Figs 5 and 6). Regarding claim 6, AN in view of SHIMOZU teaches the system of Claim 1, wherein AN teaches the hollow core shaft (15) includes a distal surface (34), and the lower surface of the alignment tool is configured to move the end plate (21) along the hollow core shaft (15) onto the distal surface (34) while the central shaft (61) slides axially into the hollow core shaft (15). Regarding claim 7, AN in view of SHIMOZU teaches the system of Claim 1, wherein AN teaches the end plate (21) includes an inner wall (21a) that defines the central opening, and the lower surface is configured to align the inner wall (21a) parallel to the central axis of the stator core (11) when the central shaft (61) is disposed within the hollow core shaft (15). Regarding claim 8, AN in view of SHIMOZU teaches the system of Claim 1, wherein AN teaches the lower surface is an annular shape concentric with the central shaft (61) the lower surface having an inner diameter that is greater than an outer diameter of the hollow core shaft (15) and less than an outer diameter of the end plate (21) (see annotated Fig. 5, below, Fig. 6, and Fig. 7). PNG media_image6.png 192 194 media_image6.png Greyscale Fig. 5 (annotated) Regarding claim 16, AN discloses an alignment tool (60) for positioning an end plate (21) on a core shaft of a stator core (11), the tool comprising: a central shaft (61) disposed about a central axis, the central shaft (61) having a proximal end and extending in an axial direction therefrom to a free distal end (62); and an outer body (63) including a base portion (76), a support portion (73) and a push portion (72), the base portion (76) being coupled to the proximal end of the central shaft (61), the support portion (73) being spaced apart from the central shaft (61) and extending from the base portion (76) in the axial direction to the push portion (72), the push portion (72) arranged around the central shaft (61) and having a lower surface defining a plane to which the central axis is normal (see Figs. 5 and 7). However, AN does not disclose the support portion spaces the push portion from the base portion by a distance greater than an axial length of the hollow core shaft. SHIMOZU discloses a stator alignment jig with a support portion 53 that spaces a push portion 54 from a base portion 55 by a distance greater than an axial length of the hollow core shaft (Fig. 10E). A person having ordinary skill in the art to which the claimed invention pertains would have been motivated to make such modification in order to enable the push part to be removed from the distal end of the stator during assembly as taught by SHIMOZU, (para [0058]). Regarding claim 17, AN in view of SHIMOZU teaches the tool of Claim 16, wherein AN teaches the support portion (73) is a cylindrical shape disposed about the central axis and defines an annular space between the support portion (73) and the central shaft (61), wherein the support portion (73) defines a plurality of openings (74) extending radially through the support portion (73) (see Figs. 5 and 6). Regarding claim 18, AN in view of SHIMOZU teaches the tool of claim 16, wherein AN teaches the proximal end of the central shaft (61) includes an upper plate (unlabeled; see annotated Fig. 5, below), and the tool further comprises a fastener (77) joining the upper plate of the central shaft (61) to the base portion (76) of the outer body (63). PNG media_image7.png 194 383 media_image7.png Greyscale Fig. 5 (annotated) Regarding claim 19, AN in view of SHIMOZU teaches the tool of Claim 16, wherein AN teaches the central shaft (61) defines a plurality of openings (74) extending axially along the central shaft (61). Regarding claim 20, AN in view of SHIMOZU teaches the tool of Claim 16, wherein AN teaches the lower surface is an annular surface disposed concentrically about the central shaft (61) (see annotated Fig. 5, below, Fig. 6, and Fig. 7). PNG media_image8.png 300 303 media_image8.png Greyscale Fig. 5 (annotated) Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). 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. The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. US-4831715-A Witwer; US-5185547-A Carbonell; US-20160197539-A1 Agapiou; and US-20180375408-A1 DREIER disclose alignment tools for stator construction with push portions that are spaced apart at a length greater than a hollow shaft. Any inquiry concerning this communication or earlier communications from the examiner should be directed to JUSTIN STEFANON whose telephone number is (703)756-4648. The examiner can normally be reached Monday - Thursday and alternate Fridays 8AM - 5PM EDT. 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, Oluseye Iwarere can be reached at (571) 270-5112. 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. /JUSTIN STEFANON/ Examiner, Art Unit 2834 /OLUSEYE IWARERE/ Supervisory Patent Examiner, Art Unit 2834
Read full office action

Prosecution Timeline

Jan 05, 2023
Application Filed
May 09, 2023
Response after Non-Final Action
Nov 05, 2025
Non-Final Rejection mailed — §103
Dec 19, 2025
Interview Requested
Jan 12, 2026
Applicant Interview (Telephonic)
Jan 12, 2026
Examiner Interview Summary
Feb 04, 2026
Response Filed
Jun 05, 2026
Final Rejection mailed — §103 (current)

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

3-4
Expected OA Rounds
51%
Grant Probability
99%
With Interview (+48.0%)
3y 2m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 186 resolved cases by this examiner. Grant probability derived from career allowance rate.

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