US2634112A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Evaporative cooler with automatic feed
Assignee: Individual
•
Filing: 1949-08-13
•
Granted: 1953-04-07
•
Expires: 1969-08-13
Abstract
No abstract record available.
Inventors
- 👤 Floyd E Snow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:37
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/32; B60H1/3202; Y; Y10; Y10S; Y10S261/00; Y10S261/34; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2564; Y10T137/7287; Y10T137/7339; Y10T137/7355
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US97748A
Cited
US470424A
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US818397A
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US1378055A
Cited
US1907121A
Cited
US1898785A
Cited
US2237497A
Cited
US2322110A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |