Prosecution Insights
Last updated: August 16, 2026
Application No. 18/260,934

RUBBER VULCANIZATION PROCESSES EMPLOYING A EUTECTIC MIXTURE

Non-Final OA §102§103§112
Filed
Jul 10, 2023
Priority
Jan 12, 2021 — provisional 63/136,337 +1 more
Examiner
FANG, SHANE
Art Unit
1766
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Bridgestone Americas Tire Operations LLC
OA Round
1 (Non-Final)
76%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
95%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allowance Rate
1152 granted / 1509 resolved
+11.3% vs TC avg
Strong +19% interview lift
Without
With
+18.8%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
70 currently pending
Career history
1569
Total Applications
across all art units

Statute-Specific Performance

§101
0.8%
-39.2% vs TC avg
§103
54.6%
+14.6% vs TC avg
§102
19.8%
-20.2% vs TC avg
§112
12.8%
-27.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1509 resolved cases

Office Action

§102 §103 §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 . DETAILED ACTION All the references cited in the International Search Report have been considered. The most pertinent of these references have been applied below. Election/Restrictions The applicant has elected Species IAa (claims 1-25) with traverse. Applicant’s election in the reply is acknowledged. Because applicant did not distinctly and specifically point out the supposed errors in the restriction requirement, the election has been treated as an election without traverse (MPEP § 818.03(a)). In response to applicant’s argument, the examiner withdrew the restriction/election of species of claims 2, 6, 36, and 38-39. This restriction is made FINAL. See previous action for the reasons of applying restriction. 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. Claim(s) 8 (is)are rejected under 35 U.S.C. 112(b) as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor, or for pre-AIA the applicant regards as the invention. Claim 8 recites the limitation of “100 pbw rubber”. There is insufficient antecedent basis for this limitation in the claim, because rubber is not part of the composition of claim 1. Claim 8 appears to be meant to depend on claim 3. 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. (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claim(s) 1-3, 6-8, 34-39, and 42 is(are) rejected under 35 U.S.C. 102(a)(1) as being anticipated by Sheepwash et al. (WO 2019089788, US 20210198459 as English equivalent), listed on IDS and ISR. As to claims Sheepwash (claims, abs., examples, Tables) discloses: PNG media_image1.png 219 660 media_image1.png Greyscale PNG media_image2.png 495 653 media_image2.png Greyscale PNG media_image3.png 402 647 media_image3.png Greyscale PNG media_image4.png 496 664 media_image4.png Greyscale PNG media_image5.png 196 676 media_image5.png Greyscale PNG media_image6.png 84 647 media_image6.png Greyscale PNG media_image7.png 183 646 media_image7.png Greyscale PNG media_image8.png 534 639 media_image8.png Greyscale PNG media_image9.png 145 643 media_image9.png Greyscale PNG media_image10.png 205 646 media_image10.png Greyscale 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 of this title, 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) 40-41 is (are) rejected under 35 U.S.C. 103(a) as being unpatentable over Sheepwash et al. (WO 2019089788, US 20210198459 as English equivalent), listed on IDS and ISR) in view of Kitagawa et al. (US 20100210760). Disclosure of Sheepwash is adequately set forth in ¶1 and is incorporated herein by reference. Sheepwash is silent on the claimed particle size. In the same area of endeavor of producing vulcanized rubber (abs., examples, claims), Kitagawa (76) discloses a silica-based inorganic filler is suitably used as a reinforcing agent, and a synthetic silicic acid having a primary particle diameter of 50 nm or less. Therefore, as to claims 40-41, it would have been obvious to one of ordinary skill in the art to have modified the process disclosed by Kaner and replaced the silica in view of Kitagawa, because the resultant process would yield a rubber with reinforcement. Kitagawa’s silica with the claimed particle size would be expected to be capable of performing the intended use of "inner carrior” of claim 40. Case law holds that a recitation of the intended use of the claimed invention must result in a structural difference between the claimed invention and the prior art in order to patentably distinguish the claimed invention from the prior art. If the prior art structure is capable of performing the intended use, then it meets the claim. See MPEP 2111.02, In re Casey, 152 USPQ 235 (CCPA 1967) and In re Otto, 136 USPQ 458,459 (CCPA 1963). In this particular case, no compositional difference between the claimed and disclosed silica. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to SHANE FANG whose telephone number is (571)270-7378. The examiner can normally be reached on Mon-Thurs. 8am-6pm. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Randy Gulakowski can be reached on 571.572.1302. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /SHANE FANG/Primary Examiner, Art Unit 1766
Read full office action

Prosecution Timeline

Jul 10, 2023
Application Filed
Jul 22, 2026
Non-Final Rejection mailed — §102, §103, §112 (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
76%
Grant Probability
95%
With Interview (+18.8%)
2y 5m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1509 resolved cases by this examiner. Grant probability derived from career allowance rate.

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