US2552196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Altitude control
Assignee: Bendix Aviation Corp
•
Filing: 1946-04-08
•
Granted: 1951-05-08
•
Expires: 1966-04-08
Abstract
No abstract record available.
Inventors
- 👤 Alan M Maccallum
- 👤 Norman B Murphy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:58
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/04; G05D1/06; G05D1/0607; G05D1/0615; G05D1/0623; G01; G01F; G01F1/00; G01F1/05; G01F1/34; G01F1/50; G05D1/042; Y; Y10; Y10T; Y10T74/00; Y10T74/12; Y10T74/1229; Y10T74/1257
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1719067A
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US1019616A
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US1994757A
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US2091300A
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US2091306A
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US2249738A
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US2358803A
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US2415429A
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US2357745A
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US2398372A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-07 | 1954-11-06 | 1955-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-07 | 1958-11-06 | 1959-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-07 | 1962-11-06 | 1963-05-08 | $7700.00 | Window Closed / Lapsed |