Prosecution Insights
Last updated: May 29, 2026
Application No. 18/788,071

UNIAXIALLY STRETCHED MULTILAYER STRUCTURE AND METHOD OF PRODUCING THE SAME

Non-Final OA §103
Filed
Jul 29, 2024
Priority
Mar 18, 2022 — JP 2022-043586 +1 more
Examiner
MILLER, BETHANY MACKENZIE
Art Unit
1787
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Mitsubishi Chemical Corporation
OA Round
1 (Non-Final)
55%
Grant Probability
Moderate
1-2
OA Rounds
1y 4m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 55% of resolved cases
55%
Career Allowance Rate
78 granted / 142 resolved
-10.1% vs TC avg
Strong +48% interview lift
Without
With
+47.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
27 currently pending
Career history
196
Total Applications
across all art units

Statute-Specific Performance

§103
92.8%
+52.8% vs TC avg
§102
3.8%
-36.2% vs TC avg
§112
2.7%
-37.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 142 resolved cases

Office Action

§103
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 Claims 1-6 in the reply filed on 01/27/2026 is acknowledged. Claims 7-8 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected invention, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on 01/27/2026. Claim Objections Claim 3 is objected to because of the following informalities: Claim 3, line 1, “resin composition (A)” should read “resin composition (A) layer”. Claim 3, line 2, “an ethylene-vinyl alcohol” should read “the ethylene-vinyl alcohol”. Appropriate 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. Claims 1-6 are rejected under 35 U.S.C. 103 as being unpatentable over Furukawa et al. (US 2010/0055482 A1). Regarding Claim 1, Furukawa discloses a multilayer structure having a layer (a) comprising a resin composition comprising an ethylene-vinyl alcohol copolymer (A) (EVOH) and a polyamide-based resin (B) (Abstract). The EVOH has an ethylene content of 10 to 60 mol% (para 0031). Furukawa further discloses multilayer structures wherein the layer (a) is not an outermost layer (para 0067). The multilayer structure may be stretched by uniaxial stretching (para 0071). In light of the overlap between the claimed multilayer structure and that disclosed by Furukawa, it would have been obvious to one of ordinary skill in the art to produce a multilayer structure that is both disclosed by Furukawa and is encompassed within the scope of the present claims, and thereby arrive at the claimed invention. Regarding Claim 2, Furukawa discloses all the limitations of the present invention according to Claim 1 above. Furukawa further discloses uniaxially stretching the multilayer structure with a stretching rate of 5 times or more (para 0072). Regarding Claim 3, Furukawa discloses all the limitations of the present invention according to Claim 1 above. Furukawa further discloses the content ratio of the EVOH (A) to the polyamide-based resin (B) in the resin composition is 95/5 to 60/40 by weight (para 0057) and layer (a) is not required to comprise any other components. Therefore, it would have been obvious to produce the multilayer structure wherein the layer (a) comprises EVOH as a main component (i.e. 50 mass% or more, according to para 0014 of the present specification). Regarding Claim 4, Furukawa discloses all the limitations of the present invention according to Claim 1 above. Furukawa further discloses the multilayer structure may comprise a thermoplastic resin layer (para 0065). Regarding Claim 5, Furukawa discloses all the limitations of the present invention according to Claim 1 above. Furukawa further discloses the multilayer structure may comprise an adhesive resin layer (para 0067). Regarding Claim 6, Furukawa discloses all the limitations of the present invention according to Claim 1 above. While Furukawa further discloses the multilayer structure may comprise a “polyamide based resin layer” (para 0068), this layer is not required, and there is no disclosure or requirement of a layer comprising polyamide resin in an amount of 50 mass% or more. Therefore, it would have been obvious to produce the multilayer structure not having a layer comprising polyamide as a main component (i.e. 50 mass% or more, according to para 0035 of the present specification). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to BETHANY M MILLER whose telephone number is (571)272-2109. The examiner can normally be reached M-F 8:00-4:00. 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. /BETHANY M MILLER/Examiner, Art Unit 1787 /CALLIE E SHOSHO/Supervisory Patent Examiner, Art Unit 1787
Read full office action

Prosecution Timeline

Jul 29, 2024
Application Filed
Mar 02, 2026
Non-Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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A WATERBORNE POLYURETHANE-EPOXY RESIN BASED PRIMER COMPOSITION AND ITS PREPARATION METHOD THEREOF
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Patent 12611844
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3y 1m to grant Granted Apr 28, 2026
Patent 12604540
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3y 4m to grant Granted Apr 14, 2026
Patent 12584011
EPOXY RESIN COMPOSITION, GAS BARRIER LAMINATE, AND PACKAGING MATERIAL
2y 10m to grant Granted Mar 24, 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
55%
Grant Probability
99%
With Interview (+47.9%)
3y 2m (~1y 4m remaining)
Median Time to Grant
Low
PTA Risk
Based on 142 resolved cases by this examiner. Grant probability derived from career allowance rate.

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