US2669416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fabricated valve with removable self-cleaning seat
Assignee: FABRI VALVE CO OF AMERICA
•
Filing: 1950-04-11
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Granted: 1954-02-16
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Expires: 1970-04-11
Abstract
No abstract record available.
Inventors
- 👤 Harold S Hilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:13
CPC Classifications
F; F16; F16K; F16K3/00; F16K3/30; F16K3/316
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US736513A
Cited
US1801237A
Cited
FR652159A
Cited
US2000494A
Cited
US2001271A
Cited
US2064567A
Cited
US2448706A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-15 | 1957-08-17 | 1958-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-15 | 1961-08-17 | 1962-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-15 | 1965-08-17 | 1966-02-16 | $7700.00 | Window Closed / Lapsed |