Patent US2591602A successfully refreshed from Google Patents.
US2591602A
Expired / Lapsed
US
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Airplane safety device
Assignee: Individual
•
Filing: 1946-03-27
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Granted: 1952-04-01
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Expires: 1966-03-27
Abstract
No abstract record available.
Inventors
- 👤 Matt V Pilcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:11
CPC Classifications
G; G05; G05G; G05G5/00; G05G5/06; G05G5/08; B; B64; B64D; B64D31/00; B64D31/02; B64D31/04; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87096; Y10T137/87113; Y10T137/87121; Y10T137/87129; Y10T137/87137; Y10T137/877; Y10T137/87829; Y10T137/87837; Y10T137/87861; Y10T137/87869; Y10T74/00; Y10T74/20; Y10T74/20207; Y10T74/20238; Y10T74/2025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US396548A
Cited
US1309295A
Cited
US1092426A
Cited
US1169659A
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US1471515A
Cited
US2224290A
Cited
US2351485A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-01 | 1955-10-01 | 1956-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-01 | 1959-10-01 | 1960-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-01 | 1963-10-01 | 1964-04-01 | $7700.00 | Window Closed / Lapsed |