US2629234A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Absorption refrigeration
Assignee: Servel Inc
•
Filing: 1947-12-08
•
Granted: 1953-02-24
•
Expires: 1967-12-08
Abstract
No abstract record available.
Inventors
- 👤 Charles A Miller
- 👤 Victor G Dreier
- 👤 Gilchrist William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:41
CPC Classifications
F; F25; F25B; F25B15/00; F25B15/10; Y; Y02; Y02A; Y02A30/00; Y02A30/27; Y02B; Y02B30/00; Y02B30/62
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1849685A
Cited
US2059877A
Cited
GB486268A
Cited
US2167663A
Cited
GB537999A
Cited
US2363399A
Cited
US2321113A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-24 | 1956-08-25 | 1957-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-24 | 1960-08-25 | 1961-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-24 | 1964-08-25 | 1965-02-24 | $7700.00 | Window Closed / Lapsed |