US2905783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic switch assembly for stock tank
Assignee: Individual
•
Filing: 1957-07-03
•
Granted: 1959-09-22
•
Expires: 1977-07-03
Abstract
No abstract record available.
Inventors
- 👤 Jr William C Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:33
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/30; G01F23/56; H; H01; H01H; H01H35/00; H01H35/18
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1220954A
Cited
US1506101A
Cited
US2663772A
Cited
US2726296A
Cited
US2749401A
Cited
US2780692A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-21 | 1963-03-23 | 1963-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-21 | 1967-03-23 | 1967-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-21 | 1971-03-23 | 1971-09-22 | $7700.00 | Window Closed / Lapsed |