Prosecution Insights
Last updated: October 02, 2026
Application No. 17/870,072

FLOW PATH CASSETTE, CELL CULTURING KIT, AND CELL CULTURING SYSTEM

Final Rejection §DP
Filed
Jul 21, 2022
Priority
Feb 06, 2020 — JP 2020-018937 +1 more
Examiner
HENKEL, DANIELLE B
Art Unit
1799
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Terumo Corporation
OA Round
4 (Final)
56%
Grant Probability
Moderate
5-6
OA Rounds
0m
Est. Remaining
80%
With Interview

Examiner Intelligence

Grants 56% of resolved cases
56%
Career Allowance Rate
366 granted / 651 resolved
-8.8% vs TC avg
Strong +24% interview lift
Without
With
+23.6%
Interview Lift
resolved cases with interview
Typical timeline
3y 8m
Avg Prosecution
29 currently pending
Career history
676
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
55.4%
+15.4% vs TC avg
§102
16.4%
-23.6% vs TC avg
§112
17.4%
-22.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 651 resolved cases

Office Action

§DP
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 . Response to Amendment The amendment filed 8/6/26 has been entered and fully considered. Claims 1-20 remain pending. Response to Arguments Applicant’s arguments, see pages 10-13, filed 8/6/26, with respect to the pending claims have been fully considered and are persuasive. The rejection of 7/1/26 has been withdrawn. Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP § 2146 et seq. for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional the reply must be complete. See MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The actual filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to www.uspto.gov/patents/apply/applying-online/eterminal-disclaimer. Claims 1-20 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 2, 11 and 19 (including all base claims) of U.S. Patent No. 12516278. Although the claims at issue are not identical, they are not patentably distinct from each other because the examined claims in this instant application are either anticipated by, or would have been obvious over the reference claims. Patent reference claims 2, 11 and 19 recite a flow path cassette with first and second cassette bodies, a frame to support the two bodies and a plurality of interlayer connection tubes provided at different outer sides of the frame as is claimed in instant application claims 1, 10, 17. The difference lies in the fact that the patent claim includes many more elements and is thus much more specific. Thus the invention of claim # of the patent is in effect a "species" of the "generic" invention of claim # of the present application. It has been held that the generic invention is "anticipated" by the "species". See In re Goodman, 29 USPQ2d 2010 (Fed. Circ. 1993). Since claims 1, 10, 17 are anticipated by claims 2, 11, 19 of the patent, they are not patentably distinct inventions. 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 DANIELLE B HENKEL whose telephone number is (571)270-5505. The examiner can normally be reached M-Th 11-7 EST, Alt. Fridays. 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, Michael Marcheschi can be reached at 571-272-1374. 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. /DANIELLE B HENKEL/Examiner, Art Unit 1799 /William H. Beisner/Primary Examiner, Art Unit 1799
Read full office action

Prosecution Timeline

Show 2 earlier events
Oct 03, 2025
Response Filed
Jan 28, 2026
Final Rejection mailed — §DP
Mar 25, 2026
Response after Non-Final Action
Apr 27, 2026
Request for Continued Examination
Apr 29, 2026
Response after Non-Final Action
Jul 01, 2026
Non-Final Rejection mailed — §DP
Aug 06, 2026
Response Filed
Aug 26, 2026
Final Rejection mailed — §DP (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12735664
CELL CULTURE DEVICE
4y 5m to grant Granted Sep 15, 2026
Patent 12698479
AUTOMATED SYSTEM FOR PRODUCING INDUCED PLURIPOTENT STEM CELLS OR DIFFERENTIATED CELLS
3y 1m to grant Granted Aug 04, 2026
Patent 12680066
CASSETTE ASSEMBLY
4y 9m to grant Granted Jul 14, 2026
Patent 12674129
MINIATURIZED CENTRIFUGAL BIOREACTOR AND ROTOR SYSTEM
4y 7m to grant Granted Jul 07, 2026
Patent 12662655
Device for Distributing a Flow
5y 1m to grant Granted Jun 23, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

5-6
Expected OA Rounds
56%
Grant Probability
80%
With Interview (+23.6%)
3y 8m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 651 resolved cases by this examiner. Grant probability derived from career allowance rate.

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