US2967016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Course computer for navigators
Assignee: Individual
•
Filing: 1957-03-04
•
Granted: 1961-01-03
•
Expires: 1977-03-04
Abstract
No abstract record available.
Inventors
- 👤 Gray Robert John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:43
CPC Classifications
G; G01; G01C; G01C21/00; G01C21/20; G06; G06G; G06G1/00; G06G1/0005; G06G1/0052
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2517264A
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US697861A
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US777508A
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US1113717A
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US1985907A
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US2150442A
Cited
US2239959A
Cited
US2244125A
Cited
US2299444A
Cited
US2345020A
Cited
US2545935A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-03 | 1964-07-04 | 1965-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-03 | 1968-07-04 | 1969-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-03 | 1972-07-04 | 1973-01-03 | $7700.00 | Window Closed / Lapsed |