US2441771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Yieldable drive for rotors
Assignee: JARVIS C MARBLE
•
Filing: 1943-03-17
•
Granted: 1948-05-18
•
Expires: 1963-03-17
Abstract
No abstract record available.
Inventors
- 👤 Lysholm Alf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:28
CPC Classifications
F; F01; F01C; F01C1/00; F01C1/08; F01C1/12; F01C1/14; F01C1/16; F01C21/00; F01C21/06; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T74/19074; Y10T74/19121; Y10T74/19633; Y10T74/1987
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US581418A
Cited
GB190324716A
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US1001676A
Cited
GB359691A
Cited
US2035096A
Cited
US2111568A
Cited
US2226212A
Cited
US2316565A
Cited
US2346761A
Cited
US2391577A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-05-18 | 1951-11-17 | 1952-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-05-18 | 1955-11-17 | 1956-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-05-18 | 1959-11-17 | 1960-05-18 | $7700.00 | Window Closed / Lapsed |