Prosecution Insights
Last updated: April 19, 2026
Application No. 18/686,634

SURFACING MATERIAL

Non-Final OA §102§103
Filed
Feb 26, 2024
Examiner
SHAH, SAMIR
Art Unit
1787
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Hexcel Composites Limited
OA Round
1 (Non-Final)
36%
Grant Probability
At Risk
1-2
OA Rounds
4y 9m
To Grant
69%
With Interview

Examiner Intelligence

Grants only 36% of cases
36%
Career Allow Rate
182 granted / 513 resolved
-29.5% vs TC avg
Strong +33% interview lift
Without
With
+33.3%
Interview Lift
resolved cases with interview
Typical timeline
4y 9m
Avg Prosecution
59 currently pending
Career history
572
Total Applications
across all art units

Statute-Specific Performance

§103
53.8%
+13.8% vs TC avg
§102
15.1%
-24.9% vs TC avg
§112
22.0%
-18.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 513 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 . Election/Restrictions Applicant’s election without traverse of group I in the reply filed on 1/20/2026 is acknowledged. Claims 17, 18 and 23 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected groups, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on 01/20/2026. 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 – (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 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Sang et al. (WO 2019/133405). It is noted that when utilizing WO 2019/133405, the disclosures of the reference are based on US 2020/0316823 which is an English language equivalent of the reference. Therefore, the column and line numbers cited with respect to WO 2019/133405 are found in US 2020/0316823. Regarding claim 1, Sang discloses a surfacing material (abstract) comprising a UV blocking layer 22 comprising thermoplastic polymer, i.e. UV resistant polymer layer, (fig. 3, 0019), a curable resin layer 21 cured by heating at elevated temperature, i.e. thermocurable resin layer, (fig. 3, 0031, 0033) and a textile carrier 23, i.e. a fibrous support, (fig. 3, 0015) wherein a first surface of the UV resistant polymer layer forms an outermost surface of the surfacing material and the second surface of the UV resistant polymer layer contacts a first surface of the thermocurable resin layer and the second surface of the thermocurable resin layer contacts a first surface of the fibrous support (fig. 3). 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) 2-16 is/are rejected under 35 U.S.C. 103 as being unpatentable over Sang (US 2020/0316823) in view of Collette et al. (US 2020/0276795). Regarding claims 2-8, Sang in view of Collette discloses the surfacing material of claim 1, wherein the UV resistant layer comprises thermoplastic polyurethane (0023) and the thickness of the UV resistant layer is 10 to 250 microns (0028). Sang does not disclose polyurethane properties. Collette discloses multilayer film used in automobiles (0039) wherein the thermoplastic polyurethane polymer film is used to protect surface from adverse environmental condition (0002) wherein the polyurethane is Argotec 49510 (0020). Given that Collette discloses the same polyurethane as disclosed in the present specification, it is clear that the polyurethane of Collette would have the same properties as claimed in present claims. It would have been obvious to one of ordinary skill in the art to use the specific polyurethane of Collette in the polyurethane layer of Sang to obtain surface protection from adverse environmental condition. Regarding claims 9-14, Sang in view of Collette discloses thermocurable resin comprises epoxy resin (0034) and the fibrous support is a continuous nonwoven material (0015, 0069). However, Sang in view of Collette does not disclose an areal weight of the thermocurable resin and an areal density of the fibrous support. Since the instant specification is silent to unexpected results, the specific areal weight and areal density of thermocurable resin and fibrous support are not considered to confer patentability to the claims. As the weight and thickness of the surface material is a variable that can be modified, among others, by adjusting the areal weight and areal density of thermocurable resin and fibrous support, the precise areal weight and areal density would have been considered a result effective variable by one having ordinary skill in the art at the time the invention was made. As such, without showing unexpected results, the claimed areal weight and areal density cannot be considered critical. Accordingly, one of ordinary skill in the art at the time the invention was made would have optimized, by routine experimentation, the areal weight and areal density of thermocurable resin and fibrous support in surfacing material to obtain the desired weight and thickness (In re Boesch, 617 F.2d. 272, 205 USPQ 215 (CCPA 1980)), since it has been held that where the general conditions of the claim are disclosed in the prior art, discovering the optimum or workable ranges involves only routine skill in the art. (In re Aller, 105 USPQ 223). Given that the continuous nonwoven fibrous support of Sang in view of Collette is the same as claimed in present claim, it is clear that the continuous nonwoven fibrous support of Sang in view of Collette would have the same properties as presently claimed. Regarding claim 15, Sang in view of Collette discloses the surfacing material of claim 1, wherein Sang comprising electrically conductive metal screen, i.e. electrically conductive metal mesh layer, (0029-0030). Regarding claim 16, Sang in view of Collette discloses the surfacing material of claim 1, wherein the fibrous support is a layups impregnated by thermocurable resin, i.e. a second layer of fibrous reinforcement is impregnated by thermocurable resin (0007, 0067-0068). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to SAMIR SHAH whose telephone number is (571)270-1143. The examiner can normally be reached 8:00am - 5:00pm. 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, Callie Shosho can be reached at 571-272-1123. 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. /SAMIR SHAH/Primary Examiner, Art Unit 1787
Read full office action

Prosecution Timeline

Feb 26, 2024
Application Filed
Feb 20, 2026
Non-Final Rejection — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12600542
Multilayer Structure and Packaging Material Comprising Same
2y 5m to grant Granted Apr 14, 2026
Patent 12589555
DIRECT APPLICATION OF THERMOSETTING COMPOSITE SURFACING FILMS TO UV-TREATED THERMOPLASTIC SURFACES AND RELATED COMPOSITE STRUCTURES
2y 5m to grant Granted Mar 31, 2026
Patent 12583164
MULTILAYER ARTICLES AND METHODS OF MAKING
2y 5m to grant Granted Mar 24, 2026
Patent 12577358
GAS BARRIER FILM AND METHOD OF PRODUCING THE SAME
2y 5m to grant Granted Mar 17, 2026
Patent 12577432
ORGANOSILICON COMPOUND, PRODUCTION METHOD THEREFOR, AND CURABLE COMPOSITION
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

1-2
Expected OA Rounds
36%
Grant Probability
69%
With Interview (+33.3%)
4y 9m
Median Time to Grant
Low
PTA Risk
Based on 513 resolved cases by this examiner. Grant probability derived from career allow rate.

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