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
2026-10-30 03:07
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
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE212570C
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 |