US2481702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air circulating device
Assignee: CHARLES KINCHCLOC TOWT
•
Filing: 1946-05-27
•
Granted: 1949-09-13
•
Expires: 1966-05-27
Abstract
No abstract record available.
Inventors
- 👤 Charles W Towt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:54
CPC Classifications
A; A01; A01G; A01G13/00; A01G13/08; F; F04; F04D; F04D25/00; F04D25/02; F04D25/08; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/1836
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US572008A
Cited
US610852A
Cited
US936668A
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US1270833A
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US1767060A
Cited
US1905502A
Cited
US1903615A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-12 | 1953-03-14 | 1953-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-12 | 1957-03-14 | 1957-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-12 | 1961-03-14 | 1961-09-13 | $7700.00 | Window Closed / Lapsed |