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US2778376A
Expired / Lapsed
US
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Automatic shut-off valve
Assignee: Individual
•
Filing: 1953-08-28
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Granted: 1957-01-22
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Expires: 1973-08-28
Abstract
No abstract record available.
Inventors
- 👤 Chester Frank Reginald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:25
CPC Classifications
F; F16; F16K; F16K21/00; F16K21/04; F16K21/16; B; B05; B05B; B05B1/00; B05B1/30; B05B1/3006; Y; Y10; Y10T; Y10T137/00; Y10T137/1624
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-22 | 1960-07-23 | 1961-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-22 | 1964-07-23 | 1965-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-22 | 1968-07-23 | 1969-01-22 | $7700.00 | Window Closed / Lapsed |