Prosecution Insights
Last updated: July 17, 2026
Application No. 18/887,923

RABBET JOINT WITH A CURVED SURFACE

Non-Final OA §102§103
Filed
Sep 17, 2024
Priority
Sep 18, 2023 — provisional 63/583,468
Examiner
DEMUREN, BABAJIDE A
Art Unit
3633
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Westlake Royal Building Products (Usa) Inc.
OA Round
1 (Non-Final)
74%
Grant Probability
Favorable
1-2
OA Rounds
3m
Est. Remaining
96%
With Interview

Examiner Intelligence

Grants 74% — above average
74%
Career Allowance Rate
771 granted / 1044 resolved
+21.9% vs TC avg
Strong +22% interview lift
Without
With
+22.2%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 1m
Avg Prosecution
21 currently pending
Career history
1063
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
81.5%
+41.5% vs TC avg
§102
10.4%
-29.6% vs TC avg
§112
5.4%
-34.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1044 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 . 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. Claims 1, 2, 11, 13, 15, 18, and 20 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Stanchfield US20070283654. Claim 1. Stanchfield discloses a building or construction piece comprising: at least one rabbet joint (Fig.33A and 26) including a shoulder (402a) and cheek (402b); and a curved surface (402c) having a radius in the rabbet joint (as shown in Fig.26 below). PNG media_image1.png 354 444 media_image1.png Greyscale Claim 2 and 13. Stanchfield discloses construction piece comprising polyvinyl chloride (P.0062). Claim 11. Stanchfield discloses a first rabbet joint with a first shoulder (402a) and first cheek (402b) and a first curved surface (402c) having a first radius in the first rabbet joint; and a second rabbet joint with a second shoulder and second cheek and a second curved surface having a second radius in the second rabbet joint (mirror opposite of the first rabbet joint shown in Fig.26). Claim 15, 18, and 20. Stanchfield discloses building or construction piece comprising: a generally planar first outer surface portion (opposite 402b) with an embossing of polyvinyl chloride material (604, Fig.33A, P.0131:5-7 and P.0062:8-10); a first rabbet joint with a first shoulder (402a) and first cheek (402b) and a first curved surface (402c) having a first radius in the first rabbet joint; and a generally planar second outer surface portion (opposite 402b) with an embossing of polyvinyl chloride material (604, Fig.33A, P.0131:5-7 and P.0062:8-10); a second rabbet joint with a second shoulder and second cheek and a second curved surface having a second radius in the second rabbet joint (mirror opposite of the first rabbet joint shown in Fig.26). 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. Claims 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 16, 17, 19, and 21 are rejected under 35 U.S.C. 103 as being unpatentable over Stanchfield US20070283654 as applied to claim 1 and 15. Claim 3, 10, and 14. Stanchfield is silent on further comprising cellular polyvinyl chloride, however it would have been obvious to one of ordinary skill in the art before the filing date of the instant invention to form the polyvinyl chloride of cellular polyvinyl chloride with the motivation of achieving a lightweight, expanded form of standard rigid PVC as a premium, low-maintenance alternative to natural wood, since it has been held to be within the general skill of a worker in the art to select a known material on the basis of its suitability for the intended use as a matter of obvious design choice. Claim 4-6, 9, 12, 16, 17, 19, and 21. Stanchfield is silent on the radius is from about 1/16” to about 1/4" or about .250 inches. It would have been obvious to one of ordinary skill in the art before the filing date of the instant invention to provide the claimed radius for a particular use case as it has been held that where the general conditions of a claim are disclosed in the prior art, discovering the optimum or workable ranges involves only routine skill in the art. Claim 7-9. Stanchfield is silent on the shoulder includes a shoulder length of at least about 0.750 inches and the cheek includes a cheek length of at least about 1.000 inches. It would have been obvious to one of ordinary skill in the art before the filing date of the instant invention to provide the claimed lengths for a particular use case as it has been held that where the general conditions of a claim are disclosed in the prior art, discovering the optimum or workable ranges involves only routine skill in the art. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Refer to attached NOTICE OF REFERENCE CITED. Any inquiry concerning this communication or earlier communications from the examiner should be directed to BABAJIDE A DEMUREN whose telephone number is (571)270-7017. The examiner can normally be reached Mon-Fri 9am-5pm. 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, Brian Glessner can be reached at 5712726754. 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. BABAJIDE A. DEMUREN Primary Examiner Art Unit 3633 /BABAJIDE A DEMUREN/Primary Examiner, Art Unit 3633
Read full office action

Prosecution Timeline

Sep 17, 2024
Application Filed
Jun 10, 2026
Non-Final Rejection mailed — §102, §103 (current)

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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
74%
Grant Probability
96%
With Interview (+22.2%)
2y 1m (~3m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1044 resolved cases by this examiner. Grant probability derived from career allowance rate.

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