Patent US3869813A successfully refreshed from Google Patents.
Patent US2965730A successfully refreshed from Google Patents.
US2965730A
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US
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Safety cutoff valve with indicator switch
Assignee: Individual
•
Filing: 1958-12-22
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Granted: 1960-12-20
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Expires: 1978-12-22
Abstract
No abstract record available.
Inventors
- 👤 Regoli Bengasi
- 👤 Stefano Carlo Di
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:47
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/20; F16K17/22; F16K17/32; B; B60; B60T; B60T11/00; B60T11/10; B60T11/28; B60T11/32; B60T11/323; B60T17/00; B60T17/18; B60T17/22; B60T17/226; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/265; Y10T137/2663; Y10T137/7722; Y10T137/7723; Y10T137/7726; Y10T137/7727
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1936504A
Cited
US2239348A
Cited
US2410202A
Cited
US2531274A
Cited
US2568311A
Cited
US2879791A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |