Patent US2618973A successfully refreshed from Google Patents.
US2618973A
Expired / Lapsed
US
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Air speed integrator
Assignee: Bendix Aviation Corp
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Filing: 1946-05-14
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Granted: 1952-11-25
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Expires: 1966-05-14
Abstract
No abstract record available.
Inventors
- 👤 Ruth L Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:45
CPC Classifications
G; G01; G01P; G01P5/00; G01P5/14; G01P5/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1323119A
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USRE22572E
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US1665857A
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US1573850A
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US1581957A
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US2318153A
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US2357199A
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US2441381A
Cited
US2461635A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-25 | 1956-05-26 | 1956-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-25 | 1960-05-26 | 1960-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-25 | 1964-05-26 | 1964-11-25 | $7700.00 | Window Closed / Lapsed |