US2832565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blade carrying rotors
Assignee: Armstrong Siddeley Motors Ltd
•
Filing: 1952-03-03
•
Granted: 1958-04-29
•
Expires: 1972-03-03
Abstract
No abstract record available.
Inventors
- 👤 Thomas Albert
- 👤 Horace S Rainbow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:23
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/02; F01D5/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1593393A
Cited
CH233433A
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US2427614A
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US2461242A
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US2452782A
Cited
US2497151A
Cited
US2637488A
Cited
US2618463A
Cited
US2548886A
Cited
US2639579A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-28 | 1961-10-28 | 1962-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-28 | 1965-10-28 | 1966-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-28 | 1969-10-28 | 1970-04-29 | $7700.00 | Window Closed / Lapsed |