US2672885A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotatable quick opening valve
Assignee: TRACY S ANSEL
•
Filing: 1949-09-26
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Granted: 1954-03-23
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Expires: 1969-09-26
Abstract
No abstract record available.
Inventors
- 👤 Thomas O Cox
- 👤 Homer C Rankin
- 👤 Samuel A Trott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:37
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/08; F16K5/14; F16K5/20; F16K5/204; F16K5/06; F16K5/0647; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86928; Y10T137/86936; Y10T137/86944; Y10T137/86984
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1311815A
Cited
US1173731A
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US1502021A
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US2064765A
Cited
US2058748A
Cited
US2095136A
Cited
US2200474A
Cited
US2493966A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-22 | 1957-09-21 | 1958-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-22 | 1961-09-21 | 1962-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-22 | 1965-09-21 | 1966-03-23 | $7700.00 | Window Closed / Lapsed |