Patent US2854611A successfully refreshed from Google Patents.
US2854611A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rectifier
Assignee: RCA Corp
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Filing: 1953-05-25
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Granted: 1958-09-30
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Expires: 1973-05-25
Abstract
No abstract record available.
Inventors
- 👤 Roland W Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:21
CPC Classifications
H; H10; H10P; H10P95/00; H10D; H10D64/00; H10D64/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
AN ELECTRICAL DEVICE COMPRISING A BODY OF N-TYPE MATERIAL SELECTED FROM THE CLASS CONSISTING OF CADMIUM SULPHIDE AND CADMIUM SELENIDE, A RECTIFYING ELECTRODE IN SURFACE CONTACT WITH SAID BODY, AND AN OHMIC ELECTRODE IN BROAD-AREA SURFACE CONTACT WITH SAID BODY, SAID OHMIC ELECTRODE COMPOSED OF A MATERIAL SELECTED FROM THE CLASS CONSISTING OF METALS AND ALLOYS OF METALS AND CONTAINING AT LEAST 50% OF AT LEAST ONE METAL SELECTED FROM THE CLASS CONSISTING OF INDIUM, GALLIUM, THALLIUM, TIN, LEAD, MAGNESIUM AND CERIUM.
Claim 2
Dependent Claim
82 words
AN ELECTRICAL DEVICE COMPRISING A BODY OF N-TYPE MATERIAL SELECTED FROM THE CLASS CONSISTING OF CADMIUM SULPHIDE AND CADMIUM SELENIDE, A RECTIFYING ELECTRODE IN SURFACE CONTACT WITH SAID BODY, AND AN OHMIC ELECTRODE IN BROAD-AREA SURFACE CONTACT WITH SAID BODY, SAID OHMIC ELECTRODE COMPOSED OF A MATERIAL SELECTED FROM THE CLASS CONSISTING OF METALS AND ALLOYS OF METALS AND CONTAINING AT LEAST 50% OF AT LEAST ONE METAL SELECTED FROM THE CLASS CONSISTING OF INDIUM, GALLIUM, THALLIUM, TIN, LEAD, MAGNESIUM AND CERIUM.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-29 | 1962-03-31 | 1962-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-29 | 1966-03-31 | 1966-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-29 | 1970-03-31 | 1970-09-30 | $7700.00 | Window Closed / Lapsed |