Prosecution Insights
Last updated: August 15, 2026
Application No. 18/865,009

INK STORAGE MEMBER FOR WRITING IMPLEMENTS

Non-Final OA §103§112
Filed
Nov 12, 2024
Priority
May 19, 2022 — JP 2022-082312 +1 more
Examiner
OLIVER, BRADLEY S
Art Unit
3754
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
MITSUBISHI PENCIL Company, Limited
OA Round
2 (Non-Final)
61%
Grant Probability
Moderate
2-3
OA Rounds
10m
Est. Remaining
75%
With Interview

Examiner Intelligence

Grants 61% of resolved cases
61%
Career Allowance Rate
423 granted / 695 resolved
-9.1% vs TC avg
Moderate +14% lift
Without
With
+14.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
28 currently pending
Career history
735
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
57.6%
+17.6% vs TC avg
§102
19.6%
-20.4% vs TC avg
§112
19.7%
-20.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 695 resolved cases

Office Action

§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 . Claim Objections Claims 1 and 2 are objected to because of the following informalities: in claim 1, line 5, “the paper base material” should be “the first paper base material” to keep the phrasing consistent; in claim 1, lines 7-8, “the intermediate layer comprises a second paper base material, on one surface or both surfaces of the second paper base material” should be “the intermediate layer comprises a second paper base material, the second paper base material comprising, on one surface or both surfaces of the second paper base material”; in claim 2, lines 3-4, “on one surface the second paper base material” should be “on one surface of the second paper base material”. Appropriate correction is required. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(d): (d) REFERENCE IN DEPENDENT FORMS.—Subject to subsection (e), a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. The following is a quotation of pre-AIA 35 U.S.C. 112, fourth paragraph: Subject to the following paragraph [i.e., the fifth paragraph of pre-AIA 35 U.S.C. 112], a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. Claim 4 is rejected under 35 U.S.C. 112(d) or pre-AIA 35 U.S.C. 112, 4th paragraph, as being of improper dependent form for failing to further limit the subject matter of the claim upon which it depends, or for failing to include all the limitations of the claim upon which it depends. Claim 4 recites “a third paper base material of the outer layer” which contradicts claim 1, which recites that the outer layer comprises “the paper base material”, referring back to the first paper base material of the inner layer. Claim 4 therefore does not include the limitation of claim 1 that the outer layer comprises the same paper base material as the inner layer. Applicant may cancel the claim(s), amend the claim(s) to place the claim(s) in proper dependent form, rewrite the claim(s) in independent form, or present a sufficient showing that the dependent claim(s) complies with the statutory requirements. Claim Rejections - 35 USC § 103 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. 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) 1-2 and 4 is/are rejected under 35 U.S.C. 103 as being unpatentable over Ichikawa (WO 2021/014698 A1) in view of Simmons (WO 2011/061473). Regarding claim 1, Ichikawa teaches an ink storage member (10) configured for writing implements, the ink storage member comprising: an inner layer (1) comprising a first paper base material (); an intermediate layer (1, See Fig. 3) formed on an outer surface of the inner layer; and an outer layer (3) comprising the paper base material () formed on an outer surface of the intermediate layer, wherein the intermediate layer comprises a second paper base material (). Ichikawa does not teach that on one surface or both surfaces of the second base material: an aluminum oxide film layer, a silica film layer formed from a low molecular weight silane and/or a silica film layer formed from a polysilazane. Instead, Ichikawa teaches aluminum foil formed on one surface of the second base material. Simmons teaches the use of aluminum oxide (pg. 3, third paragraph). Accordingly, it would have been obvious to one of ordinary skill in the art at the effective filing date of the claimed invention to have replaced the aluminum foil of Ichikawa with aluminum oxide as taught by Simmons, wherein doing so would merely be a matter of selecting an alternative material recognized in the art (Simmons, pg. 3, third paragraph). Regarding claim 2, the combination of Ichikawa and Simmons teaches the ink storage member of claim 1, wherein the intermediate layer comprises the aluminum oxide film (Simmons, pg. 3, third paragraph) on one surface of the second base material (Ichikawa, Fig. 3). Regarding claim 4, the combination of Ichikawa and Simmons teaches the ink storage member of claim 1, wherein at least one of the first paper base material of the inner layer and a third base material of the outer layer is glassine paper (Ichikawa, pg. 3, eighth paragraph). Claim(s) 3 is/are rejected under 35 U.S.C. 103 as being unpatentable over Ichikawa and Simmons as applied to claim 1 above, and further in view of Fushimi (US 11426763). Regarding claim 3, the combination of Ichikawa and Simmons teaches the ink storage member according to claim 1, wherein the inner layer and the intermediate layer, or the intermediate layer and the outer layer are bonded to each other (Ichikawa, with acrylic adhesive, see Example 1), but does not teach that the layers are bonded with an olefin-based adhesive or a silane coupling agent. Fushimi teaches a laminate with a silane coupling agent (col. 5, ll. 27-37). Accordingly, it would have been obvious to one of ordinary skill in the art at the effective filing date of the claimed invention to have replaced the acrylic adhesive of Ichikawa with the silane coupling agent of Fushimi, wherein doing so would merely be a matter of simple substitution of one known adhesive for another with predictable results. Response to Arguments Applicant's arguments filed 20 March 2026 have been fully considered but they are not persuasive. Applicant’s arguments against the Han reference are moot because the current rejection does not rely on the Han reference for any rejection. Applicant’s arguments against the Fushimi reference are not persuasive because Fushimi is not relied upon for the rejection of claim 1. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to BRADLEY S OLIVER whose telephone number is (571)270-3787. The examiner can normally be reached Monday-Friday, 7-3 ET. 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, David Angwin can be reached at (571)270-3735. 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. /BRADLEY S OLIVER/Examiner, Art Unit 3754 /DAVID P ANGWIN/Supervisory Patent Examiner, Art Unit 3754
Read full office action

Prosecution Timeline

Nov 12, 2024
Application Filed
Dec 22, 2025
Non-Final Rejection mailed — §103, §112
Mar 20, 2026
Response Filed
Jul 21, 2026
Non-Final Rejection mailed — §103, §112 (current)

Precedent Cases

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RECEPTACLE
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Patent 12635787
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Patent 12623482
A REPLACEABLE CARTRIDGE FOR A WRITING INSTRUMENT AND METHOD THEREOF
1y 12m to grant Granted May 12, 2026
Patent 12604965
FEEDING CONTAINER
1y 4m to grant Granted Apr 21, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

2-3
Expected OA Rounds
61%
Grant Probability
75%
With Interview (+14.2%)
2y 7m (~10m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 695 resolved cases by this examiner. Grant probability derived from career allowance rate.

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