Prosecution Insights
Last updated: April 19, 2026
Application No. 18/672,677

LIQUID CONTAINER AND LIQUID EJECTION APPARATUS

Non-Final OA §102
Filed
May 23, 2024
Examiner
VALENCIA, ALEJANDRO
Art Unit
2853
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Seiko Epson Corporation
OA Round
1 (Non-Final)
42%
Grant Probability
Moderate
1-2
OA Rounds
2y 11m
To Grant
48%
With Interview

Examiner Intelligence

Grants 42% of resolved cases
42%
Career Allow Rate
567 granted / 1335 resolved
-25.5% vs TC avg
Moderate +6% lift
Without
With
+5.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
151 currently pending
Career history
1486
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
53.6%
+13.6% vs TC avg
§102
24.4%
-15.6% vs TC avg
§112
20.8%
-19.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1335 resolved cases

Office Action

§102
DETAILED ACTION Election/Restrictions Claims 10-13 are withdrawn from further consideration pursuant to 37 CFR 1.142(b), as being drawn to a nonelected species, there being no allowable generic or linking claim. Applicant timely traversed the restriction (election) requirement in the reply filed on 12/23/2025. Applicant traverses on the basis that a search for one embodiment would necessarily encompass the subject matter of the remaining species. Examiner maintains this is not the case. The species are materially different, and to search for one would not necessarily encompass the others. The Requirement is maintained. Allowable Subject Matter Claim 9 is objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. 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) 1-8 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Dowell (2003/0043240). Regarding claim 1, Dowell teaches a liquid container configured to contain a liquid to be ejected onto a medium by a liquid ejection apparatus, the liquid container comprising: a first containing unit (fig. 1B, item 106) configured to contain the liquid; a second containing unit (fig. 1B, item 104) which is disposed not to communicate with the first containing unit (see fig. 1B), and which is configured to contain a same liquid as the liquid contained in the first containing unit (see fig. 1B); and a coupling portion (fig. 1B, item 100) configured to couple the first containing unit and the second containing unit to each other, wherein the first containing unit is provided with a first derivation unit (fig. 1B, item 77) configured to derive the liquid contained in the first containing unit, the second containing unit is provided with a second derivation unit (fig. 1B, item 76) configured to derive the liquid contained in the second containing unit, and the first containing unit and the second containing unit are individually sealed (see fig. 1B). Regarding claim 2, Dowell teaches the liquid container according to claim 1, wherein a derivation direction of the liquid from the first derivation unit is same as a derivation direction of the liquid from the second derivation unit (see fig. 1B, Note that liquid is derived in the direction of gravity through interconnect structures 77A, 76A where the derivation direction can be said to turn horizontal. Note that “derivation direction” has not been defined with any specificity. For purposes of this claim, the gravity direction is being taken to be the derivation direction). Regarding claim 3, Dowell teaches the liquid container according to claim 2, wherein the first derivation unit and the second derivation unit are located at a same position in a direction along the derivation direction (see fig. 1B). Regarding claim 4, Dowell teaches the liquid container according to claim 1, wherein a derivation direction of the liquid from the first derivation unit is opposite to a derivation direction of the liquid from the second derivation unit (see fig. 1B, Note that liquid is derived in the direction of gravity through interconnect structures 77A, 76A where the derivation direction can be said to turn horizontal. Note that “derivation direction” has not been defined with any specificity. For purposes of this claim, opposing arrows if the fluid once downstream of interconnects 77A, 76A are being taken to be the respective derivation directions). Regarding claim 5, Dowell teaches the liquid container according to claim 1, wherein the coupling portion is a housing (fig. 1B, item 100) configured to house the first containing unit and the second containing unit (see fig. 1B). Regarding claim 6, Dowell teaches the liquid container according to claim 1, wherein the liquid container contains the liquid to be injected into a liquid reservoir unit provided to the liquid ejection apparatus (see fig. 1B). Regarding claim 7, Dowell teaches the liquid container according to claim 1, wherein the liquid container is detachably attached to a loading unit of the liquid ejection apparatus (see fig. 1A). Regarding claim 8, Dowell teaches the liquid container according to claim 7, wherein the liquid container is configured to be loaded on the loading unit in a first posture in which the liquid is derived from the first derivation unit to the liquid ejection apparatus, and a second posture which is different from the first posture, and in which the liquid is derived from the second derivation unit to the liquid ejection apparatus (see figs. 1A, 1B, Note that housing 100 can be rotated 180 degrees about a vertical axis and repositioned on the loading unit 94, and note that liquid is derived from both derivation units in both postures). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ALEJANDRO VALENCIA whose telephone number is (571)270-5473. The examiner can normally be reached M-F. 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, DOUGLAS X. RODRIGUEZ can be reached at 571-431-0716. 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. /ALEJANDRO VALENCIA/Primary Examiner, Art Unit 2853
Read full office action

Prosecution Timeline

May 23, 2024
Application Filed
Feb 02, 2026
Non-Final Rejection — §102 (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
42%
Grant Probability
48%
With Interview (+5.9%)
2y 11m
Median Time to Grant
Low
PTA Risk
Based on 1335 resolved cases by this examiner. Grant probability derived from career allow rate.

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