Prosecution Insights
Last updated: April 19, 2026
Application No. 18/854,112

VALVE, AND PACKAGE

Non-Final OA §112
Filed
Oct 04, 2024
Examiner
WEINERTH, GIDEON R
Art Unit
3736
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
B&T Entwicklungs- und Vermarktungsgesellschaft mbH
OA Round
1 (Non-Final)
57%
Grant Probability
Moderate
1-2
OA Rounds
2y 6m
To Grant
72%
With Interview

Examiner Intelligence

Grants 57% of resolved cases
57%
Career Allow Rate
428 granted / 752 resolved
-13.1% vs TC avg
Strong +15% interview lift
Without
With
+15.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
23 currently pending
Career history
775
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
50.6%
+10.6% vs TC avg
§102
20.0%
-20.0% vs TC avg
§112
23.2%
-16.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 752 resolved cases

Office Action

§112
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 . Drawings The drawings are objected to as failing to comply with 37 CFR 1.84(p)(5) because they do not include the following reference sign(s) mentioned in the description: Paragraph 0057 of Published Application US 2025/0229966 recites “the minimal length pi of a path”. However, Figure 5 does not show a reference number pi or π. Rather, the letters “lp” is shown. Paragraph 0065 recites “As is illustrated for example, in FIG 5, the spacers 33 have rounded edges 35…” However, this is inaccurate, as Figure 6 shows these reference numbers. Corrected drawing sheets in compliance with 37 CFR 1.121(d) are required in reply to the Office action to avoid abandonment of the application. Any amended replacement drawing sheet should include all of the figures appearing on the immediate prior version of the sheet, even if only one figure is being amended. Each drawing sheet submitted after the filing date of an application must be labeled in the top margin as either “Replacement Sheet” or “New Sheet” pursuant to 37 CFR 1.121(d). If the changes are not accepted by the examiner, the applicant will be notified and informed of any required corrective action in the next Office action. The objection to the drawings will not be held in abeyance. Claim Rejections - 35 USC § 112 Claims 1-14 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claim 1 includes the limitation “equipped to be fastened to a flexible package material”. This language has been evaluated under the three-prong test set forth in MPEP § 2181, subsection I, but the result is inconclusive. Thus, it is unclear whether this limitation should be interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, because it is unclear what exactly is the intended meaning of the term. The pressure relief valve includes structures such as the energy directing rib (18) as part of the annular end face (16). However, it is unclear if the term ‘equipped’ intends to claim such a structure OR if the pressure relief valve is simply configured to be fastened to a flexible package material without the inclusion of such a structure. In other words, it is not understood if the term ‘equipped to be fastened’ necessarily includes the structural features for the attachment to flexible packaging material. The boundaries of this claim limitation are ambiguous; therefore, the claim is indefinite and is rejected under 35 U.S.C. 112(b) or pre-AIA 35 U.S.C. 112, second paragraph. In response to this rejection, applicant must clarify whether this limitation should be interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. Mere assertion regarding applicant’s intent to invoke or not invoke 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph is insufficient. Applicant may: (a) Amend the claim to clearly invoke 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, by reciting “means” or a generic placeholder for means, or by reciting “step.” The “means,” generic placeholder, or “step” must be modified by functional language, and must not be modified by sufficient structure, material, or acts for performing the claimed function; (b) Present a sufficient showing that 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, should apply because the claim limitation recites a function to be performed and does not recite sufficient structure, material, or acts to perform that function; (c) Amend the claim to clearly avoid invoking 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, by deleting the function or by reciting sufficient structure, material or acts to perform the recited function; or (d) Present a sufficient showing that 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, does not apply because the limitation does not recite a function or does recite a function along with sufficient structure, material or acts to perform that function. Claims 2-14 are rejected as dependent on a rejected base claim. The following is presented to applicant as suggested EXAMINER’S PROPOSED DRAFT AMENDMENT which would overcome the indefiniteness rejection above. (Examiner’s Proposed Amendment) A pressure-relief valve having a bottom and a circumferential wall, said cup shaped main body configured to be fastened to a flexible package material ; the bottom having at least one through hole forming a passage through the main body; a valve membrane lying against the main body on a package side in a region around the at least one through hole; and a sealing liquid disposed between the main body and the valve membrane; wherein the bottom, on the package side, has a system of grease grooves for accommodating a portion of the sealing liquid; the system of grease grooves comprising at least one outer grease groove having a main portion running in a circumferential direction and having a radial extension extending from the main portion inward in a radial direction. (Examiner’s Proposed Amendment- Clean) A pressure-relief valve comprising: a cup shaped main body having a bottom and a circumferential wall, said cup shaped main body configured to be fastened to a flexible package material; the bottom having at least one through hole forming a passage through the main body; a valve membrane lying against the main body on a package side in a region around the at least one through hole; and a sealing liquid disposed between the main body and the valve membrane; wherein the bottom, on the package side, has a system of grease grooves for accommodating a portion of the sealing liquid; the system of grease grooves comprising at least one outer grease groove having a main portion running in a circumferential direction and having a radial extension extending from the main portion inward in a radial direction. Claim 9 recites the limitation "at least one component of the valve" in the first line. There is insufficient antecedent basis for this limitation in the claim as both the “Pressure relief valve” and the “valve membrane” is recited in independent Claim 1 and it is unclear which component is being referred to in Claim 9. Allowable Subject Matter Claims 1-14 would be allowable if rewritten or amended to overcome the rejection under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), 2nd paragraph, set forth in this Office action. The following is a statement of reasons for the indication of allowable subject matter: The present claims recite a system of grease grooves as shown in Figure 5 that include an inward radial extension (25). Prior art check valves intended for flexible packaging bags typically have concentric grease grooves as seen in Hollenstein (US 4444219) Elements 5 and 6. These radial extensions are recited to provide better control of the adhesion forces provided by the silicone lubricant or grease. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Any inquiry concerning this communication or earlier communications from the examiner should be directed to GIDEON R. WEINERTH whose telephone number is (571)270-5121. The examiner can normally be reached Monday-Friday 10AM-6PM 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, Orlando Aviles can be reached at (571) 270-5531. 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. /GIDEON R WEINERTH/Examiner, Art Unit 3736
Read full office action

Prosecution Timeline

Oct 04, 2024
Application Filed
Feb 07, 2026
Non-Final Rejection — §112 (current)

Precedent Cases

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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
57%
Grant Probability
72%
With Interview (+15.2%)
2y 6m
Median Time to Grant
Low
PTA Risk
Based on 752 resolved cases by this examiner. Grant probability derived from career allow rate.

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