US2869593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic shut-off valve
Assignee: Individual
•
Filing: 1955-09-19
•
Granted: 1959-01-20
•
Expires: 1975-09-19
Abstract
No abstract record available.
Inventors
- 👤 Clifford V Zieg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:10
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/42; B67D7/44; B67D7/46; B67D7/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2138380A
Cited
US2303179A
Cited
US2335346A
Cited
US2302766A
Cited
US2445524A
Cited
US2529936A
Cited
US2528696A
Cited
US2686626A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |