Prosecution Insights
Last updated: July 17, 2026
Application No. 18/556,164

LAMINATED CAN END STOCK

Non-Final OA §102§103§112
Filed
Oct 19, 2023
Priority
Apr 22, 2021 — provisional 63/178,323 +1 more
Examiner
LEONG, NATHAN T
Art Unit
1718
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Novelis Inc.
OA Round
1 (Non-Final)
71%
Grant Probability
Favorable
1-2
OA Rounds
1m
Est. Remaining
95%
With Interview

Examiner Intelligence

Grants 71% — above average
71%
Career Allowance Rate
541 granted / 760 resolved
+6.2% vs TC avg
Strong +24% interview lift
Without
With
+24.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 10m
Avg Prosecution
17 currently pending
Career history
774
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
83.2%
+43.2% vs TC avg
§102
4.7%
-35.3% vs TC avg
§112
8.0%
-32.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 760 resolved cases

Office Action

§102 §103 §112
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, claims 1-5 and 7-12 in the reply filed on 4/6/26 is acknowledged. Since the election is made without traverse, the restriction is deemed as proper and therefore made FINAL. Claims 13-21 are withdrawn from consideration. Claim Objections Claim 8 is objected to because of the following informalities: Claim 8 is dependent on claim 0, which is a typographical error as no claim 0 exists. Appropriate correction is required. 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. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claim 8 is rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claim 8 is dependent on claim 0. Claim 0 does not exist. Therefore, it is unclear and confusing what the scope of the claim should be and which claim limitations should be included into dependent claim 8. For examination purposes, claim 8 will be interpreted as being dependent on claim 1. 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) 1-5, 7, 9-12 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Spahn et al US 2017/0326862. Per claim 1, Spahn teaches a process for preparing a can end stock (Fig. 1, abstract, [0009]) comprising pre-heating a metal strip (802) to a first temperature below 250C [0009]; laminating a polymer film (824) to a first side of the metal strip, wherein the first side of the metal strip corresponds to an exterior facing side of the can end (Fig. 1) [0010]; annealing the laminated metal strip at an annealing temperature greater than 175C [0010]. Per claim 2, Spahn teaches an aluminum strip [0062]. Per claim 3, Spahn teaches polyethylene terephthalate lamination to a metal strip [0121]. Per claim 4, Spahn teaches a layer that improves adhesion between the aluminum and film (interpreted as an adhesion layer) [0057]. Per claim 5, Spahn teaches that color can be included in the film [0038]. Per claim 7, Spahn teaches applying a lacquer to a second side of the strip, which corresponds to an interior facing side of the can [0039]. Per claims 9-10, Spahn teaches an annealing temperature of at, for example, 250C which falls within the claimed range [0049]. Per claim 11, Spahn teaches cooling the metal strip after annealing [0050]. Per claim 12, Spahn teaches application of a lubricant after exiting the annealing furnace [0055]. 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) 8 is/are rejected under 35 U.S.C. 103 as being unpatentable over Spahn et al US 2017/0326862 in view of Kawahara et al US 4828136. Per claim 8, Spahn teaches application of a lacquer on an interior side of a strip but is silent regarding the claimed composition. Kawahara teaches process of forming and coating a can, wherein a an epoxy thermosetting resin is coated on the inside of the can on the adhesive paint (col. 3, lines 49-65). It would have been obvious to one of ordinary skill in the art to have utilized an epoxy resin as the lacquer because Kawahara teaches that an epoxy type resin shows excellent adhesion and is suitable for coating on an interior surface of cans (col. 3, lines 64-69). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to NATHAN T. LEONG whose telephone number is (571)270-5352. The examiner can normally be reached M-F 10:00-6:00pm. 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, Gordon Baldwin can be reached at 571-272-5166. 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. /NATHAN T LEONG/Primary Examiner, Art Unit 1718
Read full office action

Prosecution Timeline

Oct 19, 2023
Application Filed
May 08, 2026
Non-Final Rejection mailed — §102, §103, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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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
71%
Grant Probability
95%
With Interview (+24.1%)
2y 10m (~1m remaining)
Median Time to Grant
Low
PTA Risk
Based on 760 resolved cases by this examiner. Grant probability derived from career allowance rate.

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