US2802974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selenium rectifiers
Assignee: Siemens Mobility Ltd
•
Filing: 1956-06-13
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Granted: 1957-08-13
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Expires: 1976-06-13
Abstract
No abstract record available.
Inventors
- 👤 French Eric Lionel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:29
CPC Classifications
H; H10; H10D; H10D48/00; H10D48/01; H10D48/04; H10D48/043; H10D48/046
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
A SELENIUM CELL COMPRISING, A BASE PLATE, A SELENIUM LAYER THEREON, A NON-GENETIC LAYER OF PROLAMINE ON SAID SELENIUM LAYER, AND A COUNTERELECTRODE ON SAID NON-GENETIC LAYER.
Claim 2
Dependent Claim
27 words
A SELENIUM CELL COMPRISING, A BASE PLATE, A SELENIUM LAYER THEREON, A NON-GENETIC LAYER OF PROLAMINE ON SAID SELENIUM LAYER, AND A COUNTERELECTRODE ON SAID NON-GENETIC LAYER.
References Cited (Backward Citations)
US2481739A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-12 | 1961-02-11 | 1961-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-12 | 1965-02-11 | 1965-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-12 | 1969-02-11 | 1969-08-13 | $7700.00 | Window Closed / Lapsed |