US2535527A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Model airplane propeller
Assignee: Individual
•
Filing: 1946-08-15
•
Granted: 1950-12-26
•
Expires: 1966-08-15
Abstract
No abstract record available.
Inventors
- 👤 Archiebald S Barkley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:53
CPC Classifications
A; A63; A63H; A63H27/00; A63H27/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US23598A
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US1010929A
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GB283329A
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FR665906A
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FR685715A
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US1999326A
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US2353431A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-25 | 1954-06-26 | 1954-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-25 | 1958-06-26 | 1958-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-25 | 1962-06-26 | 1962-12-26 | $7700.00 | Window Closed / Lapsed |