Patent US2530985A successfully refreshed from Google Patents.
US2530985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Timer for automatically defrosting refrigerators
Assignee: Paragon Electric Co Inc
•
Filing: 1948-09-24
•
Granted: 1950-11-21
•
Expires: 1968-09-24
Abstract
No abstract record available.
Inventors
- 👤 Morrison David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:16
CPC Classifications
F; F25; F25D; F25D21/00; F25D21/002; F25D21/008; G; G04; G04C; G04C23/00; G04C23/14; G04C23/16
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-20 | 1954-05-22 | 1954-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-20 | 1958-05-22 | 1958-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-20 | 1962-05-22 | 1962-11-21 | $7700.00 | Window Closed / Lapsed |