Patent US2913244A successfully refreshed from Google Patents.
US2913244A
Expired / Lapsed
US
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Model aircraft control
Assignee: LEON BORO
•
Filing: 1958-02-21
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Granted: 1959-11-17
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Expires: 1978-02-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Francis M Cottle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:50
CPC Classifications
G; G05; G05G; G05G7/00; G05G7/02; G05G7/10; G09; G09B; G09B9/00; G09B9/02; G09B9/08; G09B9/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1802139A
Cited
US2159963A
Cited
GB600308A
Cited
US2603910A
Cited
US2499666A
Cited
US2775453A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-16 | 1963-05-18 | 1963-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-16 | 1967-05-18 | 1967-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-16 | 1971-05-18 | 1971-11-17 | $7700.00 | Window Closed / Lapsed |