Patent US3375520A successfully refreshed from Google Patents.
US3375520A
Expired / Lapsed
US
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Integrated navigation receiver-computer
Assignee: Lear Siegler Inc
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Filing: 1965-05-07
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Granted: 1968-03-26
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Expires: 1985-05-07
Abstract
No abstract record available.
Inventors
- 👤 Groot Loren E De
- 👤 Joseph A Parini
- 👤 Arlan R Van Koevering
- 👤 William F Roth
- 👤 Robert A Racy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:51
CPC Classifications
G; G01; G01S; G01S1/00; G01S1/02; G01S1/08; G01S1/20; G01S1/24; G01S1/245
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-26 | 1971-09-25 | 1972-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-26 | 1975-09-25 | 1976-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-26 | 1979-09-25 | 1980-03-26 | $7700.00 | Window Closed / Lapsed |