Patent US3141960A successfully refreshed from Google Patents.
US3141960A
Expired / Lapsed
US
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Decade counter with analog display for use with airborne vehicle navigation means
Assignee: Individual
•
Filing: 1961-11-03
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Granted: 1964-07-21
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Expires: 1981-11-03
Abstract
No abstract record available.
Inventors
- 👤 Biser David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:55
CPC Classifications
H; H03; H03K; H03K21/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2361177A
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US2433385A
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US2658139A
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US2709770A
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US2860832A
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US2852194A
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US3014211A
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US3015815A
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US2993202A
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US3030050A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-21 | 1968-01-20 | 1968-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-21 | 1972-01-20 | 1972-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-21 | 1976-01-20 | 1976-07-21 | $7700.00 | Window Closed / Lapsed |