US2596324A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air cooler
Assignee: F A PATCHETT
•
Filing: 1949-06-20
•
Granted: 1952-05-13
•
Expires: 1969-06-20
Abstract
No abstract record available.
Inventors
- 👤 Arthur H Carpenter
- 👤 James T Calonico
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:12
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/32; B60H1/3202; F; F01; F01P; F01P9/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US55994A
Cited
US1309737A
Cited
US705830A
Cited
US1846057A
Cited
US1827768A
Cited
US2022740A
Cited
US2031055A
Cited
US2062412A
Cited
US2060732A
Cited
US2078833A
Cited
US2199632A
Cited
US2427714A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-13 | 1955-11-12 | 1956-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-13 | 1959-11-12 | 1960-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-13 | 1963-11-12 | 1964-05-13 | $7700.00 | Window Closed / Lapsed |