Patent US2737973A successfully refreshed from Google Patents.
US2737973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid level control system
Assignee: Individual
•
Filing: 1952-12-16
•
Granted: 1956-03-13
•
Expires: 1972-12-16
Abstract
No abstract record available.
Inventors
- 👤 Garman O Kimmell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:08
CPC Classifications
G; G05; G05D; G05D9/00; G05D9/04; Y; Y10; Y10T; Y10T137/00; Y10T137/2278; Y10T137/2365; Y10T137/2409; Y10T137/2931; Y10T137/3003; Y10T137/3021; Y10T137/304; Y10T137/3052; Y10T137/3056; Y10T137/7287; Y10T137/7313; Y10T137/7339; Y10T137/7349; Y10T137/7352
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US492260A
Cited
US1154591A
Cited
US1578010A
Cited
US1851422A
Cited
US2217537A
Cited
US2457320A
Cited
US2662509A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-13 | 1959-09-12 | 1960-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-13 | 1963-09-12 | 1964-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-13 | 1967-09-12 | 1968-03-13 | $7700.00 | Window Closed / Lapsed |