IP Library › Patent Application 19118539
Patent Application Utility PCT National Stage Small
App. No. 19/118,539 · Confirmation No. 4346

Check Valve With Secondary Flap

Inventor: Michael J. Duer
Notice of Allowance Mailed -- Application Received in Office of Publications View Publication ↗
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2026-07-20 SRNT Examiner's search strategy and results 2 View
2026-06-30 DRW.SUPP Drawings-black and white line and/or other drawings — View
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2026-06-30 A... Amendment/Request for Reconsideration-After Non-Final Rejection — View
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2026-06-30 CLM Claims 4 View
2026-06-30 DRW Drawings-only black and white line drawings 1 View
2026-06-30 REM Applicant Arguments/Remarks Made in an Amendment 2 View
2026-06-30 DRW Drawings-only black and white line drawings 9 View
2026-06-30 N417 Electronic Filing System Acknowledgment Receipt 2 View
2026-06-30 SCORE Placeholder sheet indicating presence of supplemental content in Supplemental Complex Repository for Examiners(SCORE) 1 View
2026-06-30 WFEE Fee Worksheet (SB06) 1 View
2026-05-15 APP.FILE.REC Filing Receipt 3 View
2026-05-14 NTC.PUB Notice of Publication 1 View
2026-05-12 CFILE Request for Corrected Filing Receipt 1 View
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2026-04-30 CTEQ Ex Parte Quayle Action 9 View
2026-04-30 892 List of references cited by examiner 1 View
2026-04-30 SRFW Search information including classification, databases and other search related notes 1 View
2026-04-30 SRNT Examiner's search strategy and results 4 View
2026-04-30 BIB Bibliographic Data Sheet 1 View
2026-04-30 1449 List of References cited by applicant and considered by examiner 2 View
2026-03-05 SES.REQ.PC Assertion of entitlement to small entity status via PC 1 View
2026-02-04 APP.FILE.REC Filing Receipt 3 View
2026-02-04 WFEE Fee Worksheet (SB06) 1 View
2026-02-04 M903 Notice of Designated Office (DO) / Elected Office (EO) Acceptance Mailed 2 View
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2026-02-04 WELCOME.LET Welcome Letter from USPTO Director and Deputy Director 1 View
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2025-07-21 N417 Electronic Filing System Acknowledgment Receipt 2 View
2025-07-21 IDS Information Disclosure Statement (IDS) Form (SB08) 6 View
2025-07-21 TRAN.LET Transmittal Letter 1 View
2025-07-21 REF.OTHER Other reference-Patent/Application/Search Documents 5 View
2025-04-04 OATH Oath or Declaration filed 1 View
2025-04-04 N417 Electronic Filing System Acknowledgment Receipt 2 View
2025-04-04 TRNA Transmittal of New Application 5 View
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2025-04-04 ADS Application Data Sheet 8 View
2025-04-04 A.PE Preliminary Amendment 1 View
2025-04-04 SPEC Specification 1 View
2025-04-04 REM Applicant Arguments/Remarks Made in an Amendment 1 View
2025-04-04 P.N.101.CONV PCT/RO/101 - Request form for new International Application - Conventional 4 View
2025-04-04 FRPR Certified Copy of Foreign Priority Application 43 View
2025-04-04 ABST Abstract 2 View
2025-04-04 ABST Abstract 2 View
2025-04-04 SPEC Specification 12 View
2025-04-04 CLM Claims 3 View
2025-04-04 DRW Drawings-only black and white line drawings 13 View
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Quick Facts
App. No.
19/118,539
Filed
2025-04-04
Pub. No.
US20260132859A1
Art Unit
3753