US2489065A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air power lift
Assignee: CLARENCE R WHITED
•
Filing: 1946-07-19
•
Granted: 1949-11-22
•
Expires: 1966-07-19
Abstract
No abstract record available.
Inventors
- 👤 Whited Milo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:51
CPC Classifications
A; A01; A01D; A01D67/00; A01D67/005; Y; Y10; Y10S; Y10S56/00; Y10S56/11
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2410918A
Cited
US1648154A
Cited
US1889451A
Cited
US1718638A
Cited
US1931815A
Cited
US2156571A
Cited
US2318409A
Cited
US2383689A
Cited
US2402449A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-21 | 1953-05-23 | 1953-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-21 | 1957-05-23 | 1957-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-21 | 1961-05-23 | 1961-11-22 | $7700.00 | Window Closed / Lapsed |