Prosecution Insights
Last updated: April 19, 2026
Application No. 18/379,294

METHOD AND ARRANGEMENT FOR MANUFACTURING A COMPOSITE PART

Final Rejection §112
Filed
Oct 12, 2023
Examiner
SCHATZ, CHRISTOPHER T
Art Unit
1746
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Airbus Operations GmbH
OA Round
2 (Final)
62%
Grant Probability
Moderate
3-4
OA Rounds
3y 9m
To Grant
89%
With Interview

Examiner Intelligence

Grants 62% of resolved cases
62%
Career Allow Rate
498 granted / 804 resolved
-3.1% vs TC avg
Strong +27% interview lift
Without
With
+26.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 9m
Avg Prosecution
40 currently pending
Career history
844
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
46.1%
+6.1% vs TC avg
§102
19.7%
-20.3% vs TC avg
§112
30.6%
-9.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 804 resolved cases

Office Action

§112
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 . FINAL REJECTION Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claims 1-10 and 13-22 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Respectfully, the claims are still replete with significant errors that render said claims entirely unclear. For example, the limitations “the cured composite part” in claim 1 lacks proper antecedent basis. The remainder of the errors are identified in the proposed amendments below: Claim 1: e) conducting a crystallization of the material of the hollow mandrel formed by step d), and then curing the composite material to form the composite part; f) removing the hollow mandrel from the mold; and Claim 2: step e) further comprises controlling a temperature of the hollow mandrel to perform the crystallization of Cancel claims 3, 13, 20 and 21 Claim 6: -- the providing of the hollow mandrel is Claim 7: -- wherein step d) comprises one or more of: Claim 8: increasing a temperature of the hollow mandrel during the crystallization of pressure inside the hollow mandrel to keep the hollow mandrel pressed against the mold; controlling the temperature of the hollow mandrel, such that the hollow mandrel crystallizes before a final curing temperaturewherein the of the temperature of the hollow mandrel -is performed gradually. Claim 9: -- The method according to claim [[3]] 1, wherein the curing of the composite part between the mold and the crystallized hollow mandrel comprises: increasing a temperature from a first temperature, at which the crystallization of the semi-crystalline thermoplastic material of the hollow mandrel occurs the curing of the composite material; and/or increasing and maintaining a pressure inside the hollow mandrel to press the composite material against the forming surface of the mold during the curing. -- Claim 10: -- The method according to claim 1, wherein the composite material is a different material from the material of the hollow mandrel Claim 16: -- and the fiber material comprises fibers and the matrix material comprises a thermo-curable resin Claim 17 -- The method according to claim 1, wherein, in step c): hollow mandrel hollow mandrel Claim 18: -- The method according to claim 1, wherein step d) comprises the hollow mandrel; pressing the fiber material and the matrix material against the forming surface of the mold; and evacuating a region between the forming surface of the mold and the hollow mandrel 19. (New) The method according to claim 1, wherein step e) comprises: gradually increasing a temperature of the hollow mandrel, during the crystallization of the hollow mandrel hollow mandrel crystallizes before a final curing temperature, 22. (New) A method for manufacturing a composite part, the method comprising sequential steps of: a) providing a hollow mold that has a forming surface, a cavity, an undercut, and is a part of a pressing tool; b) providing a composite material, which is in a form of a laminate or a prepreg material and includes a fiber material, which comprises fibers, and a matrix material, which is a thermo-curable resin the forming surface of the mold; c) providing a hollow mandrel, which is another part of the pressing tool, is made of a semi-crystalline thermoplastic material in an amorphous state, is in a form of a bladder or a hose, and is configured to fit inside the hollow mold, on the forming surface of the hollow mold, wherein: the hollow mandrel is provided at a temperature above the glass transition temperature of the semi-crystalline thermoplastic material; the semi-crystalline thermoplastic material is selected from a group consisting of polyethylene, polypropylene, polybutylene terephthalate, polyethylene terephthalate, and polyetheretherketone; and the pressing tool comprises a skin or foil made from the semi- crystalline thermoplastic material; d) forming the hollow mandrel by: pressing the hollow mandrel against the forming surface of the hollow mold; the temperature of the hollow mandrel to perform the crystallization of gradually increasing [[a]] the temperature of the hollow mandrel to a first temperature, at which the crystallization occurs the temperature of the pressing tool from [[a]] the first temperature, final curing temperature the hollow mandrel from the hollow mold; and h) removing the composite part from the hollow mold. -- Response to Arguments Applicant's arguments filed 11/20/25 have been fully considered but are moot in view of the new ground(s) of rejection. Potential Allowable Subject Matter The prior art of record does not disclose, in combination with the other limitations, the following sequentially performed steps: removing the hollow mandrel from the hollow mold; and removing the composite part from the hollow mold. Instead, the closest prior art (Clay, see Non-Final Rejection), discloses the mandrel is removed simultaneously with the composite part. One intended purpose of Clay is to bond the mandrel to the composite part. As such, modifying Clay such that the mandrel and composite part are removed sequentially would render Clay in operable for it’s intended purpose. However, in view of the severity of the 35 U.S.C 112(b) rejections above, no allowable subject has been indicated. If the applicant amendments the claims in forgoing manner, the application may be in condition for allowance. However, any potential allowably is highly dependent upon the nature of any amendments. 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. Any inquiry concerning this communication or earlier communications from the examiner should be directed to CHRISTOPHER T SCHATZ whose telephone number is (571)272-6038. The examiner can normally be reached Monday through Friday, 9-6. 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, Michael Orlando can be reached at 571-270-5038. 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. /CHRISTOPHER T SCHATZ/Primary Examiner, Art Unit 1746
Read full office action

Prosecution Timeline

Oct 12, 2023
Application Filed
Sep 15, 2025
Non-Final Rejection — §112
Nov 20, 2025
Response Filed
Mar 16, 2026
Examiner Interview (Telephonic)
Mar 17, 2026
Final Rejection — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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Patent 12576578
THREE-DIMENSIONAL DECORATIVE PIECE AND METHOD OF PRODUCING THE SAME
2y 5m to grant Granted Mar 17, 2026
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
62%
Grant Probability
89%
With Interview (+26.8%)
3y 9m
Median Time to Grant
Moderate
PTA Risk
Based on 804 resolved cases by this examiner. Grant probability derived from career allow rate.

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