Prosecution Insights
Last updated: July 17, 2026
Application No. 18/572,985

MULTILAYER MATERIAL WHICH CAN BE USED AS PACKAGING, COMPRISING A LAYER OF CELLULOSIC MATERIAL AND A LAYER OF MATERIAL COMPRISING AT LEAST ONE CASEIN AND/OR AT LEAST ONE CASEINATE

Final Rejection §102§103
Filed
Dec 21, 2023
Priority
Jun 23, 2021 — FR FR2106706 +1 more
Examiner
MIGGINS, MICHAEL C
Art Unit
1782
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Lactips
OA Round
2 (Final)
81%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
97%
With Interview

Examiner Intelligence

Grants 81% — above average
81%
Career Allowance Rate
823 granted / 1020 resolved
+15.7% vs TC avg
Strong +16% interview lift
Without
With
+16.5%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
45 currently pending
Career history
1059
Total Applications
across all art units

Statute-Specific Performance

§101
0.8%
-39.2% vs TC avg
§103
64.3%
+24.3% vs TC avg
§102
8.7%
-31.3% vs TC avg
§112
3.6%
-36.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1020 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 . REJECTIONS WITHDRAWN All previous rejections have been withdrawn. REJECTIONS REPEATED There are no rejections repeated. NEW REJECTIONS 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, 5-13 is/are rejected under 35 U.S.C. 102(a1) as being anticipated by Corby et al. (US 2004/0081781). Corby discloses a multilayer material including at least one layer of cellulosic material A, and at least one layer of a water-soluble material B (since sodium caseinate, water and the listed plasticizers are all water-soluble) comprising at least one casein and/or at least one caseinate, water, at least one plasticizer different from b) (paragraphs [0022 – 0024], [0035], [0044], [0096], [0108], Example 3 and claim 25). Corby discloses an obtained multilayer material: - either by coating a layer of cellulosic material A with a solution S comprising: a. at least one casein and/or at least one caseinate; b. water, Water, and c. at At-least one plasticizer different from b); - or by assembling a layer of cellulosic material A and a layer of water-soluble material B (since sodium caseinate, water and the listed plasticizers are all water-soluble) comprising: a. at At-least one casein and/or at least one caseinate; b. water, Water, and c. at At-least one plasticizer different from b), optionally by means of a binder, assembling being preferably carried out by complexing or laminating (paragraphs [0022 – 0024], [0035], [0044], [0096], [0108], Example 3 and claim 25). Corby discloses a method for manufacturing a multilayer material: - either by coating a layer of cellulosic material A with a solution S comprising: a. at At-least one casein and/or at least one caseinate; b. water, Water, and c. at At-least one plasticizer different from b); - or by assembling a layer of cellulosic material A and a layer of water -soluble material B (since sodium caseinate, water and the listed plasticizers are all water-soluble) comprising: a. at At-least one casein and/or at least one caseinate; b. water, Water, and c. at At-least one plasticizer different from b), optionally by means of a binder, assembling being preferably carried out by complexing or laminating (paragraphs [0022 – 0024], [0035], [0044], [0096], [0108], Example 3 and claim 25). Corby discloses wherein the plasticizer c) or material B is chosen from polyols, glycerol acetates, glycerol propionates and mixtures thereof, material B comprises between 10 and 80% casein and/or caseinate, wherein the cellulosic material A is chosen from papers and cardboards, wherein the layer of material B is a film layer of material B and a food packaging (paragraphs [0022 – 0024], [0035], [0044], [0096], [0108], Example 3 and claim 25). 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. Claim(s) 2 is/are rejected under 35 U.S.C. 103 as being unpatentable over Corby et al. (US 2004/0081781) in view of Spender et al. (US 2020/0002572). Corby does not disclose wherein the material B further comprises gelatin d). Spender discloses wherein the material B further comprises gelatin d) (paragraphs [0098 – 0099]) in a paper food container for the purpose of providing improved barrier properties and/or improved biodegradability/recyclability Therefore it would have been obvious to have provided wherein the material B further comprises gelatin d) in Corby in order to provide improved barrier properties and/or improved biodegradability/recyclability as taught or suggested by Spender. Claim(s) 3-4 is/are rejected under 35 U.S.C. 103 as being unpatentable over Corby et al. (US 2004/0081781) in view of Colak et al. (US 2021/0079223). Corby does not disclose wherein material B also comprises a hydrophobic agent chosen from carboxylic polyacid esters, C3-C33 carboxylic acids and mixtures thereof, wherein material B further comprises at least one surfactant. Colak discloses wherein material B also comprises a hydrophobic agent chosen from carboxylic polyacid esters, C3-C33 carboxylic acids and mixtures thereof, wherein material B further comprises at least one surfactant (paragraphs [0001-0009], [0014-0027], [0066-0069]) in a packaging film for the purpose of providing improved processability and/or improved mechanical properties and/or improved gas barrier properties. Therefore it would have been obvious to one of ordinary skill in the art at the time applicant’s invention was made to have provided wherein material B also comprises a hydrophobic agent chosen from carboxylic polyacid esters, C3-C33 carboxylic acids and mixtures thereof, wherein material B further comprises at least one surfactant in Corby in order to provide improved processability and/or improved mechanical properties and/or improved gas barrier properties. ANSWERS TO APPLICANT’S ARGUMENTS Applicant’s arguments of 3/27/26 have been carefully considered but are not persuasive. Applicant argues that Corby does not disclose at least one layer of a water-soluble material B. However, sodium caseinate, water and the listed plasticizers are all water-soluble (see Corby, paragraphs [0022 – 0024], [0035], [0044], [0096], [0108], Example 3 and claim 25). Therefore, Corby reads on applicant’s claims as written since applicant does not recite that the layer itself is water-soluble just that material B is water-soluble and applicant’s claims do not exclude other materials in the layer. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to MICHAEL C MIGGINS whose telephone number is (571)272-1494. The examiner can normally be reached Monday-Friday, 1-9 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, Aaron Austin can be reached at 571-272-8935. 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. /MICHAEL C MIGGINS/Primary Examiner, Art Unit 1782 MCM May 19, 2026
Read full office action

Prosecution Timeline

Dec 21, 2023
Application Filed
Dec 31, 2025
Non-Final Rejection mailed — §102, §103
Mar 27, 2026
Response Filed
May 22, 2026
Final Rejection mailed — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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2y 9m to grant Granted Jul 07, 2026
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Patent 12655236
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3y 11m to grant Granted Jun 16, 2026
Patent 12650344
HEAT PROTECTIVE CASING
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Patent 12636862
LIGHTWEIGHT POLYPROPYLENE FILM FOR ASEPTIC PACKAGING APPLICATIONS AND THE PRODUCT RESULTING THEREFROM AND THE PROCESS OF MAKING THE SAME
3y 5m to grant Granted May 26, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
81%
Grant Probability
97%
With Interview (+16.5%)
2y 5m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1020 resolved cases by this examiner. Grant probability derived from career allowance rate.

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