US1895652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling system
Assignee: Individual
•
Filing: 1929-07-17
•
Granted: 1933-01-31
•
Expires: 1949-07-17
Abstract
No abstract record available.
Inventors
- 👤 Ernest F Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:03
CPC Classifications
F; F28; F28C; F28C1/00; Y; Y02; Y02B; Y02B30/00; Y02B30/70
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1936-01-31 | 1936-08-01 | 1937-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-01-31 | 1940-08-01 | 1941-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-01-31 | 1944-08-01 | 1945-01-31 | $7700.00 | Window Closed / Lapsed |