Prosecution Insights
Last updated: April 19, 2026
Application No. 18/214,709

STEEL CORD COATING RUBBER COMPOSITION AND PNEUMATIC TIRE

Non-Final OA §103
Filed
Jun 27, 2023
Examiner
BLAND, ALICIA
Art Unit
1759
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Toyo Tire Corporation
OA Round
1 (Non-Final)
50%
Grant Probability
Moderate
1-2
OA Rounds
3y 2m
To Grant
62%
With Interview

Examiner Intelligence

Grants 50% of resolved cases
50%
Career Allow Rate
347 granted / 700 resolved
-15.4% vs TC avg
Moderate +12% lift
Without
With
+11.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
40 currently pending
Career history
740
Total Applications
across all art units

Statute-Specific Performance

§101
0.7%
-39.3% vs TC avg
§103
45.2%
+5.2% vs TC avg
§102
18.9%
-21.1% vs TC avg
§112
21.7%
-18.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 700 resolved cases

Office Action

§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 . Priority The foreign priority is not in English, the claims are thusly given an effective date of the filing of the instant application: 6/27/23 Information Disclosure Statement The information disclosure statement (IDS) submitted on 6/27/23 has been considered by the examiner. Specification The disclosure is objected to because of the following informalities: page 15 of the specification has the following: PNG media_image1.png 168 912 media_image1.png Greyscale The above 1,6-hexamethylenediamine-sodium dithiosulfate dihydrate is also in claim 1. It is unclear if this is a translation error or trademark typo. Duralink HTS is catalogued in Scifinder as the following compound: Additionally US 20 PNG media_image2.png 514 544 media_image2.png Greyscale 22/0098386 [0056] is used as evidence, from the same Assignee, that Duralink HTS from Flexsys is disclosed to be sodium hexamethylene-1,6-bisthiosulfate dihydrate (which is the above Scifinder compound). Applicant should fix or clarify the Duralink HTS citation in the specification because it does not seem to be the 1,6-hexamethylenediamine-sodium dithiosulfate dihydrate as set forth in the instant specification. Appropriate clarification/correction is required. 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. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. Claim(s) 1-6 is/are rejected under 35 U.S.C. 103 as being unpatentable over Takazo (JP 2004083766-English translation and reference of record from the IDS dated 6/27/23). Takazo discloses a rubber-steel cord composite [overview-problem to be solved] comprising 100 pts by weight rubber and less than 0.1 pt by wt cobalt salt [overview-problem to be solved]. The composite is used as a member of a pneumatic tire [0001-technical field of invention] (meeting the pneumatic tire of claims 5, 6). The rubber is a natural rubber, a styrene butadiene rubber and/or isoprene rubber [0032] (meeting the 100 parts by weight diene based rubber of claim 1 and species of claim 2). The composition further comprises at least one of 1,6-hexamethylenediamine dithiosodium 2hydrate (2hydrate translating to dihydrate) (meeting the 1,6-hexamethylene compound of claim 1) [0022] and a triazinetrithiol monoalkali metal salt [0022]. Though this is not specified to be 1,3,5-triazine, 2, 4,6 trithiol the traiazinetrithiol of Takazo is implicitly the same compound (this meets the claimed triazinetrithiol). Selecting two compounds known suitable for the same intended use is prima facie obvious, see In re Kerkhoven. Additionally the “at least one” implies and/or renders obvious the use of combinations thereof. Thus, using both compounds is prima facie obvious. [0040] discloses wherein these compounds are added in amounts of 0.5-2.0 pts per 100 parts rubber. One could use 1 parts of the 1,6-hexamethyl compound, and, 0.625 part triazinetrithiol to achieve a ratio of 1.6, both being within the claimed individual components parts by mass of claim 1. The mass basis ratio and parts by mass are thusly embraced and rendered obvious by the reference. Elements above render prima facie obvious all elements of claims 1-2, 5-6. Cobalt is used in amounts less than 0.1 parts, as above, it is also preferred that the rubber composition does not contain any cobalt salt [0018], as further required by claims 3, 4. Allowable Subject Matter The following is a statement of reasons for the indication of allowable subject matter: Applicant’s Table 1 is convincing for unexpected results for a mass ratio (1,6-hexamethyl compound / triazinetrithiol) that ranges from 3-15. Table 1 shows that for these ratios an unexpected workability/scorch/peel resistance compared to Comp Ex 1-6. The claims are not currently commensurate in scope with the showings. To be commensurate in scope Applicant should amend the mass basis to be a range of 3-15. Alternatively, Applicant can show that the endpoint of 1.6 gives unexpected results. The range would still need to be capped (and not “or more”) to be commensurate in scope. If Applicant wishes to claim a larger endpoint than 15, Applicant should submit additional data with such an endpoint showing that unexpected results persist thereto. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ALICIA BLAND whose telephone number is (571)272-2451. The examiner can normally be reached Mon - Fri 9:00 am -3:00 pm EST. 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, Curt Mayes can be reached at 571-272-1234. 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. /ALICIA BLAND/ Primary Examiner, Art Unit 1759
Read full office action

Prosecution Timeline

Jun 27, 2023
Application Filed
Jan 21, 2026
Non-Final Rejection — §103
Apr 03, 2026
Response Filed

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12600825
POLYMER COMPOSITIONS AND BIOSURFACES COMPRISING THEM ON SENSORS
2y 5m to grant Granted Apr 14, 2026
Patent 12600845
PROPYLENE POLYMER COMPOSITION
2y 5m to grant Granted Apr 14, 2026
Patent 12600898
MICROEMULSION COMPOSITION TO INCREASE INJECTIVITY OF WATER PRODUCED IN RESERVOIRS
2y 5m to grant Granted Apr 14, 2026
Patent 12590191
LOW-ODOR SOFT PVC MATERIAL
2y 5m to grant Granted Mar 31, 2026
Patent 12577382
THERMOPLASTIC MATERIALS FOR USE IN SLURRY TRANSPORTATION PIPES
2y 5m to grant Granted Mar 17, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

1-2
Expected OA Rounds
50%
Grant Probability
62%
With Interview (+11.9%)
3y 2m
Median Time to Grant
Low
PTA Risk
Based on 700 resolved cases by this examiner. Grant probability derived from career allow rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month