Patent US3155367A successfully refreshed from Google Patents.
US3155367A
Expired / Lapsed
US
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Valve plunger
Assignee: Vernay Laboratories Inc
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Filing: 1962-01-11
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Granted: 1964-11-03
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Expires: 1982-01-11
Abstract
No abstract record available.
Inventors
- 👤 Robert T Gifford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:39
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/0644; F16K31/0655; F02; F02M; F02M1/00; F16K1/00; F16K1/32; F16K1/48; F16K1/482; F02M2700/00; F02M2700/43; F02M2700/4302; F02M2700/4328
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A VALVE PLUNGER COMPRISED OF A RELATIVELY RIGID BODY, A SEPARATE, RELATIVELY RESILIENT TIP, MEANS FOR MAINTAINING SAID TIP IN SNAP-ON ENGAGEMENT WITH SAID BODY, AND MEANS BY WHICH SAID TIP IS MOVABLE ON SAID BODY AFTER BEING ENGAGED THERETO, SAID LAST MENTIONED MEANS PROVIDING FOR AXIAL MOVEMENT OF SAID TIP WITH RESPECT TO SAID BODY.
Claim 2
Dependent Claim
56 words
A VALVE PLUNGER COMPRISED OF A RELATIVELY RIGID BODY, A SEPARATE, RELATIVELY RESILIENT TIP, MEANS FOR MAINTAINING SAID TIP IN SNAP-ON ENGAGEMENT WITH SAID BODY, AND MEANS BY WHICH SAID TIP IS MOVABLE ON SAID BODY AFTER BEING ENGAGED THERETO, SAID LAST MENTIONED MEANS PROVIDING FOR AXIAL MOVEMENT OF SAID TIP WITH RESPECT TO SAID BODY.
References Cited (Backward Citations)
CA478627A
Cited
FR487096A
Cited
US2077766A
Cited
US2285343A
Cited
FR971446A
Cited
DE902477C
Cited
US2904068A
Cited
US2920861A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-03 | 1968-05-04 | 1968-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-03 | 1972-05-04 | 1972-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-03 | 1976-05-04 | 1976-11-03 | $7700.00 | Window Closed / Lapsed |