Prosecution Insights
Last updated: August 16, 2026
Application No. 18/658,000

RESPIRATOR HAVING OPTICALLY ACTIVE EXHALATION VALVE

Non-Final OA §102§DP
Filed
May 08, 2024
Priority
Jul 15, 2013 — provisional 61/846,456 +3 more
Examiner
LUARCA, MARGARET M
Art Unit
Tech Center
Assignee
3M Innovative Properties Company
OA Round
1 (Non-Final)
75%
Grant Probability
Favorable
1-2
OA Rounds
1y 0m
Est. Remaining
93%
With Interview

Examiner Intelligence

Grants 75% — above average
75%
Career Allowance Rate
368 granted / 493 resolved
+14.6% vs TC avg
Strong +18% interview lift
Without
With
+18.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 4m
Avg Prosecution
27 currently pending
Career history
521
Total Applications
across all art units

Statute-Specific Performance

§101
1.6%
-38.4% vs TC avg
§103
56.8%
+16.8% vs TC avg
§102
16.7%
-23.3% vs TC avg
§112
17.0%
-23.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 493 resolved cases

Office Action

§102 §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 . Claim Rejections - 35 USC § 102 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 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. Claims 1-2 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Martin et al (US 2005/0061327), hereinafter Martin. Regarding claim 1, Martin teaches a respirator (Fig. 1, abstract, filtering face mask), comprising: a harness (Fig. 1: 15); a mask body (Fig. 1: 12); and an exhalation valve disposed on and attached to the mask body (Fig. 1: exhalation valve 14), wherein the exhalation valve comprises: a valve seat (Fig. 4: 20); a valve cover (Fig. 6: 40); and a flexible flap that is in engagement with the valve seat (Fig. 3: flap 22 in contact with seat 20), wherein the flexible flap comprises at least a top stiff layer and a bottom layer (Fig 7: layers 44, 46, paragraph 68), and wherein the bottom layer is made from a material that has a lower modulus of elasticity than the top stiff layer.(Paragraph 74, the second layer has a modulus of elasticity that is higher than the first layer, paragraph 78, the layer that is softer, more flexible is disposed on the portion of the flap that makes contact with the valve seat’s seal surface) Regarding claim 2, Martin teaches the respirator of claim 1, and further teaches wherein the bottom layer has a modulus of elasticity between one and seven Mega Pascals (MPa). (Paragraph 74, layer 44 is preferable about 1 to 7 MPa) 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. Claim 7 is rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1 and 2 of U.S. Patent No.10,905,903. Although the claims at issue are not identical, they are not patentably distinct from each other because all of the limitations of the instant claim are found in the patented claims. Claim 7, a respirator (claim 1, a respirator), comprising: a harness (claim 1, a harness); a mask body (claim 1, a mask body); and an exhalation valve disposed on and attached to the mask body (claim 1 an exhalation valve disposed on and attached to the mask body), wherein the exhalation valve comprises: a valve seat (claim 1, a valve seat); a valve cover (claim 2); and a flexible flap that is in engagement with the valve seat (claim 1 flexible flap), wherein the flexible flap comprises a band shifting film having multiple layers. (Claim 1, has a specularly reflecting film) Claim 7 is rejected on the ground of nonstatutory double patenting as being unpatentable over claim 1 of U.S. Patent No. 12,005,277. Although the claims at issue are not identical, they are not patentably distinct from each other because all of the limitations of the instant claim are found in the patented claim. Claim 7, a respirator (claim 1, a respirator), comprising: a harness (claim 1, a harness); a mask body (claim 1, a mask body); and an exhalation valve disposed on and attached to the mask body (claim 1 an exhalation valve disposed on and attached to the mask body), wherein the exhalation valve comprises: a valve seat (claim 1, a valve seat); a valve cover (claim 2); and a flexible flap that is in engagement with the valve seat (claim 1 flexible flap), wherein the flexible flap comprises a band shifting film having multiple layers. (Claim 1, has a specularly reflecting film) Allowable Subject Matter Claims 3-6 and 8-15 are 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. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to MARGARET M LUARCA whose telephone number is (303)297-4312. The examiner can normally be reached 6:30 am - 3:00 pm MT. 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, Brandy Lee can be reached at 571-270-7410. 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. /MARGARET M LUARCA/ Primary Examiner, Art Unit 3785
Read full office action

Prosecution Timeline

May 08, 2024
Application Filed
Jul 28, 2026
Non-Final Rejection mailed — §102, §DP (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12702776
METHOD OF DRIVING A FORM OF RESPIRATORY THERAPY
3y 11m to grant Granted Aug 11, 2026
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SUPPLY DEVICE AND PROCESS FOR SUPPLYING A PATIENT-SIDE COUPLING UNIT WITH A GAS MIXTURE
3y 8m to grant Granted Aug 11, 2026
Patent 12697450
WIRED CONNECTIONS FOR SMART BREATHING CIRCUITS
3y 11m to grant Granted Aug 04, 2026
Patent 12697448
ACOUSTIC MEASUREMENT SYSTEMS AND METHODS
3y 3m to grant Granted Aug 04, 2026
Patent 12599734
SYSTEM AND METHOD FOR POINT-OF-DELIVERY PATIENT OXYGEN SUPPLY MONITORING
1y 7m to grant Granted Apr 14, 2026
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
75%
Grant Probability
93%
With Interview (+18.1%)
3y 4m (~1y 0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 493 resolved cases by this examiner. Grant probability derived from career allowance rate.

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