Patent US2638400A successfully refreshed from Google Patents.
US2638400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Round refrigerator
Assignee: Individual
•
Filing: 1948-09-27
•
Granted: 1953-05-12
•
Expires: 1968-09-27
Abstract
No abstract record available.
Inventors
- 👤 Lee E Spotts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:00
CPC Classifications
F; F25; F25D; F25D25/00; F25D25/02; F25D25/027
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US353419A
Cited
US475149A
Cited
US988269A
Cited
US1017594A
Cited
US1136120A
Cited
US1210258A
Cited
US1291366A
Cited
US1706536A
Cited
US2051271A
Cited
US2025416A
Cited
US2376032A
Cited
US2527132A
Cited
US2485067A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-11 | 1956-11-10 | 1957-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-11 | 1960-11-10 | 1961-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-11 | 1964-11-10 | 1965-05-12 | $7700.00 | Window Closed / Lapsed |