Patent US2433402A successfully refreshed from Google Patents.
US2433402A
Expired / Lapsed
US
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Selenium cell and lacquer therefor
Assignee: STC PLC
•
Filing: 1942-07-02
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Granted: 1947-12-30
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Expires: 1962-07-02
Abstract
No abstract record available.
Inventors
- 👤 Saslaw Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:22
CPC Classifications
H; H10; H10D; H10D48/00; H10D48/01; H10D48/04; H10D48/048; H10D48/049; H10D48/043; H10D48/046; H10P; H10P14/00; H10P14/20; H10P14/26; H10P14/263; H10P14/34; H10P14/3402; H10P14/38; H10P14/3802
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1544809A
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US1521876A
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US2137428A
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US2017842A
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US2139731A
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US2134131A
Cited
US2132869A
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US2126765A
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US2197497A
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US2386750A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-29 | 1951-06-30 | 1951-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-29 | 1955-06-30 | 1955-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-29 | 1959-06-30 | 1959-12-30 | $7700.00 | Window Closed / Lapsed |