US2918906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve
Assignee: Individual
•
Filing: 1953-11-23
•
Granted: 1959-12-29
•
Expires: 1973-11-23
Abstract
No abstract record available.
Inventors
- 👤 Philip S Becker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:01
CPC Classifications
F; F16; F16K; F16K27/00; F16K27/02; F16K27/0263; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/8667; Y10T137/87169; Y10T137/877; Y10T137/87708; Y10T137/87724
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US266273A
Cited
US557720A
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US1259858A
Cited
US1456050A
Cited
US1382315A
Cited
US1959336A
Cited
US2054464A
Cited
US2314860A
Cited
GB561698A
Cited
US2644426A
Cited
US2724555A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-28 | 1963-06-29 | 1963-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-28 | 1967-06-29 | 1967-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-28 | 1971-06-29 | 1971-12-29 | $7700.00 | Window Closed / Lapsed |