Patent US1989412A successfully refreshed from Google Patents.
Patent US3202124A successfully refreshed from Google Patents.
US3202124A
Expired / Lapsed
US
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Navigational vehicles
Assignee: Individual
•
Filing: 1963-11-19
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Granted: 1965-08-24
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Expires: 1983-11-19
Abstract
No abstract record available.
Inventors
- 👤 Mas Pierre O Calafat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:05
CPC Classifications
B; B63; B63H; B63H1/00; B63H1/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US582811A
Cited
US805268A
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US1049661A
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US1432401A
Cited
US1569392A
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US2259438A
Cited
US2432107A
Cited
US2843417A
Cited
FR1247972A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |