Prosecution Insights
Last updated: October 02, 2026
Application No. 18/458,361

GENERATOR ASSEMBLY AND METHOD FOR ATTACHING GENERATOR ASSEMBLY TO AN ENGINE

Final Rejection §102§103
Filed
Aug 30, 2023
Examiner
STEFANON, JUSTIN
Art Unit
2834
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Fca US LLC
OA Round
2 (Final)
51%
Grant Probability
Moderate
3-4
OA Rounds
1m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 51% of resolved cases
51%
Career Allowance Rate
96 granted / 188 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
34 currently pending
Career history
242
Total Applications
across all art units

Statute-Specific Performance

§101
1.2%
-38.8% vs TC avg
§103
40.4%
+0.4% vs TC avg
§102
32.7%
-7.3% vs TC avg
§112
25.0%
-15.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 188 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 . Response to Arguments Applicant’s arguments, see page 5, filed 05/11/2026, with respect to objections to the specification and rejections under 35 USC 112 have been fully considered and are persuasive. The objection to the specification and rejections under 35 USC 112 of claims 1-7 has been withdrawn. Applicant’s arguments with respect to rejections under 35 USC 102 and 103 of claims 1-7 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. Claim Rejections - 35 USC § 102 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 1-3 and 5-7 are rejected under 35 U.S.C. 102(a)(2) as being anticipated by ALFERMANN (US 20240413703). Regarding claim 1, ALFERMANN discloses a vehicle comprising: an engine 12 including a rotatable crankshaft 16; a transfer shaft 50 attached to the crankshaft 16 so as to be rotatable with the rotatable crankshaft 16; and a generator 20 (see para [0017]) coupled to the engine 12 via the transfer shaft 50, the generator 20 including a rotor 24 attached to a hollow rotor shaft 26 (para [0019]) and a stator 22 located radially outward from the rotor 24 (para [0018]), the hollow rotor shaft 26 being attached to the transfer shaft 50 so as to be rotatable along with the crankshaft 16 and the transfer shaft 50, wherein the generator 20 includes a casing 28 including a first end attached to the engine 12 (Fig. 2) and an opposite second end that defines an opening positioned at a location where the hollow rotor shaft 26 is attached to the transfer shaft 50 (Fig. 3), wherein the opening and the hollow rotor shaft 26 collectively define an axially extending visible path through the casing to the transfer shaft 50 (Fig. 3); and the opening is closed by a removable access panel 46. PNG media_image1.png 319 517 media_image1.png Greyscale PNG media_image2.png 435 479 media_image2.png Greyscale Regarding claim 2, ALFERMANN discloses the vehicle according to claim 1, wherein the crankshaft 16 includes a radially outwardly extending flange defining a first mating feature and the transfer shaft 50 includes a first end that includes a connection flange 52 defining a second mating feature that corresponds to and mates with the first mating feature (see Fig. 3). Regarding claim 3, ALFERMANN discloses the vehicle according to claim 2, wherein the transfer shaft 50 includes a distal end defining a plurality of first splines 62 that are configured to mate with a plurality of second splines formed on the hollow rotor shaft 26 (see para [0022] and Fig. 3). Regarding claim 5, ALFERMANN discloses the vehicle according to claim 3, wherein the hollow rotor shaft 26 includes a first leg 34 located at the first end of the transfer shaft 50 that extends axially away from the connection flange 52, an opposite second leg 32 located at the distal end of the transfer shaft 50 that extends axially toward the connection flange 52, a first disc (unlabeled; see annotated Fig. 3, below) extending radially outward from the first leg 34, a second disc 42 extending radially outward from the second leg 32, and a cylindrical section that connects the first disc to the second disc, the second splines being located on the second leg 32 (see Fig. 3). PNG media_image3.png 230 267 media_image3.png Greyscale Regarding claim 6, ALFERMANN discloses the vehicle according to claim 5, further comprising an annular shaft seal connected to the first leg 34 between the first leg 34 and the casing 28 (see para [0028]). Regarding claim 7, ALFERMANN discloses the vehicle according to claim 5, further comprising a static seal between the first leg 34 and the transfer shaft 50 (see para [0028]). 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. Claim 4 is rejected under 35 U.S.C. 103 as being unpatentable over ALFERMANN in view of MATSUMOTO (US 20170070127). Regarding claim 4, ALFERMANN discloses the vehicle according to claim 3. However, ALFERMANN does not disclose a crimp nut that fixes the hollow rotor shaft to the transfer shaft. MATSUMOTO discloses a crimp nut 50 that fixes a rotor shaft 30 to a rotor core. 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 vehicle of ALFERMANN with a crimp nut that fixes the rotor shaft to the transfer shaft, similar to that of MATSUMOTO. 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 provide a secure connection between the rotor shaft and transfer shaft, restrain the nut from loosening, and restrain deterioration of thread strength (see MATSUMOTO para [0029]) 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 20230313716 NUKADA discloses a crankshaft 21, transfer shaft 21c, a hollow rotor shaft 6a, and an opening 73a, wherein the opening and the hollow rotor shaft collectively define an axially extending visible path through a casing 70 to the transfer 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

Aug 30, 2023
Application Filed
Mar 11, 2026
Non-Final Rejection mailed — §102, §103
May 11, 2026
Response Filed
Aug 04, 2026
Final Rejection mailed — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12744438
ELECTRIC MOTOR HAVING ROTOR AND SQUIRREL CAGE WINDING
3y 2m to grant Granted Sep 22, 2026
Patent 12494684
ROTOR OF AN ELECTRIC MACHINE
2y 3m to grant Granted Dec 09, 2025
Patent 12451742
METHOD AND APPARATUS FOR COOLING A ROTOR ASSEMBLY
3y 2m to grant Granted Oct 21, 2025
Patent 12316190
CASE STRUCTURE OF IN-WHEEL MOTOR
2y 10m to grant Granted May 27, 2025
Patent 9650015
BELT RETRACTOR FOR A VEHICLE SAFETY BELT
2y 8m to grant Granted May 16, 2017
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 (~1m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 188 resolved cases by this examiner. Grant probability derived from career allowance rate.

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