US2956218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selenium rectifier
Assignee: International Standard Electric Corp
•
Filing: 1957-09-17
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Granted: 1960-10-11
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Expires: 1977-09-17
Abstract
No abstract record available.
Inventors
- 👤 Kleinle Alois
- 👤 Weiss Rudolf Friedrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:51
CPC Classifications
H; H10; H10D; H10D48/00; H10D48/01; H10D48/04; H10D48/043; H10D48/046
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
25 words
A SELENIUM RECTIFIER COMPRISING A BASE ELECTRODE, A SELENIUM LAYER INCLUDING ADDITIVES AND A COUNTER ELECTRODE, CHARACTERIZED IN THAT THE ADDITIVES ARE HALOGEN AND GALLIUM.
Claim 2
Dependent Claim
25 words
A SELENIUM RECTIFIER COMPRISING A BASE ELECTRODE, A SELENIUM LAYER INCLUDING ADDITIVES AND A COUNTER ELECTRODE, CHARACTERIZED IN THAT THE ADDITIVES ARE HALOGEN AND GALLIUM.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-11 | 1964-04-11 | 1964-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-11 | 1968-04-11 | 1968-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-11 | 1972-04-11 | 1972-10-11 | $7700.00 | Window Closed / Lapsed |