US3512148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Freezer warning system
Assignee: Motors Liquidation Co
•
Filing: 1968-08-05
•
Granted: 1970-05-12
•
Expires: 1988-08-05
Abstract
No abstract record available.
Inventors
- 👤 Charles C Gambill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:18
CPC Classifications
F; F25; F25D; F25D29/00; F25D29/008; H; H01; H01H; H01H37/00; H01H37/02; H01H37/32; H01H37/58
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US822323A
Cited
US1655847A
Cited
US2540527A
Cited
US2719197A
Cited
US3028586A
Cited
US3206573A
Cited
US3295120A
Cited
US3261945A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |