Patent US3056332A successfully refreshed from Google Patents.
US3056332A
Expired / Lapsed
US
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Photoelectrically controlled switching circuit
Assignee: Individual
•
Filing: 1960-03-18
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Granted: 1962-10-02
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Expires: 1980-03-18
Abstract
No abstract record available.
Inventors
- 👤 Beregowitz Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:35
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/28; H03K17/288; G; G03; G03B; G03B27/00; G03B27/72; G03B27/80
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2037925A
Cited
US2232373A
Cited
US2484299A
Cited
US2668474A
Cited
US2947232A
Cited
US2912593A
Cited
US2944190A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-01 | 1966-04-02 | 1966-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-01 | 1970-04-02 | 1970-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-01 | 1974-04-02 | 1974-10-02 | $7700.00 | Window Closed / Lapsed |