Patent US2823245A successfully refreshed from Google Patents.
US2823245A
Expired / Lapsed
US
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Photocell
Assignee: International Resistance Co
•
Filing: 1953-02-05
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Granted: 1958-02-11
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Expires: 1973-02-05
Abstract
No abstract record available.
Inventors
- 👤 Solow Benjamin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:36
CPC Classifications
H; H10; H10F; H10F19/00; H10F10/00; H10F10/10; H10F10/16; H10F19/40; Y; Y02; Y02E; Y02E10/00; Y02E10/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-10 | 1961-08-12 | 1962-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-10 | 1965-08-12 | 1966-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-10 | 1969-08-12 | 1970-02-11 | $7700.00 | Window Closed / Lapsed |