US2717773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air cooler
Assignee: Individual
•
Filing: 1952-08-25
•
Granted: 1955-09-13
•
Expires: 1972-08-25
Abstract
No abstract record available.
Inventors
- 👤 Gregg Wallace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:04
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/32; B60H1/3202; F; F24; F24F; F24F6/00; F24F6/02; F24F6/04; F24F2221/00; F24F2221/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1362649A
Cited
US1579560A
Cited
US2009550A
Cited
US2048694A
Cited
US2124137A
Cited
US2435798A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-12 | 1959-03-14 | 1959-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-12 | 1963-03-14 | 1963-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-12 | 1967-03-14 | 1967-09-13 | $7700.00 | Window Closed / Lapsed |