US3108779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve having a valve seat of very thin material
Assignee: ACF Industries Inc
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Filing: 1959-11-12
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Granted: 1963-10-29
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Expires: 1979-11-12
Abstract
No abstract record available.
Inventors
- 👤 Clifford E Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:27
CPC Classifications
F; F16; F16K; F16K3/00; F16K3/02; F16K3/0227; F16K25/00; F16K5/00; F16K5/02; F16K5/0257; F16K5/0271; F16K5/04; F16K5/0457; F16K5/0471; F16K5/06; F16K5/0663; F16K5/0689
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2735645A
Cited
US2516425A
Cited
US2612340A
Cited
FR1171525A
Cited
US2905197A
Cited
US2973183A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |