US2820841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photovoltaic cells and methods of fabricating same
Assignee: Clevite Corp
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Filing: 1956-05-10
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Granted: 1958-01-21
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Expires: 1976-05-10
Abstract
No abstract record available.
Inventors
- 👤 Allan E Carlson
- 👤 Lebo R Shiozawa
- 👤 Joel D Finegan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:44
CPC Classifications
H; H10; H10F; H10F10/00; H10F10/10; H10F10/16; H10F10/169; Y; Y02; Y02E; Y02E10/00; Y02E10/50; Y10; Y10S; Y10S148/00; Y10S148/063; Y10S148/12; Y10S148/15; Y10S148/169
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A PHOTOVOLTAIC CELL COMPRISING A LAYER OF POLYCRYSTALLINE CADMIUM SULFIDE AND A SECOND LAYER, SAID LAYERS BEING IN INTIMATE PHYSICAL CONTACT ALONG AN INTERFACE OF SUBSTANTIAL AREA AND FORMING A PHOTOVOLTAIC JUNCTION IN THE REGION OF AND SUBSTANTIALLY COEXTENSIVE WITH SAID INTERFACE, SAID SECOND LAYER BEING A PHOTOVOLTAIC BARRIER LAYER COMPOSED OF A MATERIAL COMPRISING MONOVALENT CATIONS OF AT LEAST ONE METAL FROM GROUP 1B OF THE PERIODIC TABLE; AND ELECTRODE MEANS INDIVIDUAL TO AND CONDUCTIVELY ASSOCIATED WITH EACH OF SAID LAYERS AT LOCATIONS SPACED FROM SAID INTERFACE.
Claim 2
Dependent Claim
88 words
A PHOTOVOLTAIC CELL COMPRISING A LAYER OF POLYCRYSTALLINE CADMIUM SULFIDE AND A SECOND LAYER, SAID LAYERS BEING IN INTIMATE PHYSICAL CONTACT ALONG AN INTERFACE OF SUBSTANTIAL AREA AND FORMING A PHOTOVOLTAIC JUNCTION IN THE REGION OF AND SUBSTANTIALLY COEXTENSIVE WITH SAID INTERFACE, SAID SECOND LAYER BEING A PHOTOVOLTAIC BARRIER LAYER COMPOSED OF A MATERIAL COMPRISING MONOVALENT CATIONS OF AT LEAST ONE METAL FROM GROUP 1B OF THE PERIODIC TABLE; AND ELECTRODE MEANS INDIVIDUAL TO AND CONDUCTIVELY ASSOCIATED WITH EACH OF SAID LAYERS AT LOCATIONS SPACED FROM SAID INTERFACE.
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) | 1961-01-20 | 1961-07-22 | 1962-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-20 | 1965-07-22 | 1966-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-20 | 1969-07-22 | 1970-01-21 | $7700.00 | Window Closed / Lapsed |