Patent US2774375A successfully refreshed from Google Patents.
US2774375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic shut-off valves
Assignee: Individual
•
Filing: 1953-04-22
•
Granted: 1956-12-18
•
Expires: 1973-04-22
Abstract
No abstract record available.
Inventors
- 👤 Bernat Henri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:58
CPC Classifications
F; F04; F04B; F04B39/00; F04B39/10; F04B39/102; F04B39/1033; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7859; Y10T137/7861; Y10T137/7862; Y10T137/7863
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
US1319787A
Cited
US1677357A
Cited
GB309600A
Cited
US1859879A
Cited
US2213259A
Cited
US2501755A
Cited
FR990160A
Cited
US2412235A
Cited
FR922790A
Cited
FR56161E
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-18 | 1960-06-18 | 1960-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-18 | 1964-06-18 | 1964-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-18 | 1968-06-18 | 1968-12-18 | $7700.00 | Window Closed / Lapsed |