US2624180A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic defrost actuator
Assignee: General Electric Co
•
Filing: 1951-12-06
•
Granted: 1953-01-06
•
Expires: 1971-12-06
Abstract
No abstract record available.
Inventors
- 👤 Charles S Grimshaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:24
CPC Classifications
F; F25; F25D; F25D21/00; F25D21/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1916315A
Cited
US1999191A
Cited
US2123073A
Cited
US2007409A
Cited
US2114768A
Cited
US2147867A
Cited
US2421819A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-06 | 1956-07-07 | 1957-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-06 | 1960-07-07 | 1961-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-06 | 1964-07-07 | 1965-01-06 | $7700.00 | Window Closed / Lapsed |