Patent US5895410A successfully refreshed from Google Patents.
US2946894A
Expired / Lapsed
US
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Light control signal generator
Assignee: Individual
•
Filing: 1957-10-29
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Granted: 1960-07-26
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Expires: 1977-10-29
Abstract
No abstract record available.
Inventors
- 👤 John B Powers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:51
CPC Classifications
B; B07; B07C; B07C5/00; B07C5/34; B07C5/342
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2219676A
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US2446046A
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US2489222A
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US2593616A
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US2561219A
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US2894145A
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US2907887A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-26 | 1964-01-25 | 1964-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-26 | 1968-01-25 | 1968-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-26 | 1972-01-25 | 1972-07-26 | $7700.00 | Window Closed / Lapsed |