Patent US3038142A successfully refreshed from Google Patents.
US3038142A
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Sonic altimeter
Assignee: Bendix Corp
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Filing: 1955-12-20
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Granted: 1962-06-05
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Expires: 1975-12-20
Abstract
No abstract record available.
Inventors
- 👤 James A Wippert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:54
CPC Classifications
G; G01; G01S; G01S15/00; G01S15/02; G01S15/06; G01S15/08; G01S15/10; G01S15/14; G05; G05D; G05D1/00; G05D1/04; G05D1/06; G05D1/0607; G05D1/0653; G05D1/0676; Y; Y10; Y10S; Y10S367/00; Y10S367/90
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2083344A
Cited
US2333688A
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US2371988A
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US2346093A
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US2502454A
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US2798153A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-04 | 1965-12-04 | 1966-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-04 | 1969-12-04 | 1970-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-04 | 1973-12-04 | 1974-06-05 | $7700.00 | Window Closed / Lapsed |