US2413138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water control for evaporative coolers
Assignee: Individual
•
Filing: 1944-10-20
•
Granted: 1946-12-24
•
Expires: 1964-10-20
Abstract
No abstract record available.
Inventors
- 👤 Archie S Feinberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:44
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; F; F28; F28F; F28F25/00; F28F25/02; C10M2219/00; C10M2219/04; C10M2219/042; C10N; C10N2010/00; C10N2010/06; C10N2010/08; Y; Y10; Y10S; Y10S261/00; Y10S261/46; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7358; Y10T137/7368
Claims Analysis
Total Claims: 0
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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) | 1949-12-23 | 1950-06-24 | 1950-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-12-23 | 1954-06-24 | 1954-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-12-23 | 1958-06-24 | 1958-12-24 | $7700.00 | Window Closed / Lapsed |