US3163255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exhaust valve silencer with sintered metal silencing disc
Assignee: AIR MITE DEVICES Inc
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Filing: 1963-04-04
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Granted: 1964-12-29
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Expires: 1983-04-04
Abstract
No abstract record available.
Inventors
- 👤 Seymour F Stryker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:08
CPC Classifications
B; B25; B25D; B25D17/00; B25D17/11; B25D17/12; F; F01; F01N; F01N1/00; F01N1/08; F01N1/082
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
56 words
A GAS SILENCER DEVICE FOR INSTALLATION ON THE EXHAUST PORT OF AN EXHAUST VALVE OF THE CHARACTER DESCRIBED COMPRISING, A NIPPLE HAVING A CENTRAL BORE THERETHROUGH, SAID NIPPLE HAVING A HEAD FORMATION AT ONE END THEREOF, SAID HEAD HAVING A RECESSED SEAT IN AN END FACE THEREOF, AND A COMPACTED SINTERED METAL DISC COOPERATIVELY ENGAGED IN
References Cited (Backward Citations)
US226905A
Cited
US328840A
Cited
US1326647A
Cited
US943544A
Cited
US2576610A
Cited
US2738781A
Cited
US2950775A
Cited
US3032139A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-12-29 | 1968-06-29 | 1968-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-29 | 1972-06-29 | 1972-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-29 | 1976-06-29 | 1976-12-29 | $7700.00 | Window Closed / Lapsed |