Patent US3682708A successfully refreshed from Google Patents.
US3682708A
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US
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Solar cell
Assignee: Westinghouse Electric Corp
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Filing: 1969-10-07
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Granted: 1972-08-08
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Expires: 1989-10-07
Abstract
Abstract A solar cell with improved efficiency is provided with a convoluted PN junction whereby a higher proportion of carriers produced by exposure of the solar cell to a source of radiation will be collected by the PN junction rather than being lost by recombination and the solar cell has an increased resistance to radiation damage.
Inventors
- 👤 Allan I Bennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:46
CPC Classifications
H; H10; H10F; H10F10/00; H10F10/10; H10F10/14; H10F10/142; H10F99/00; Y; Y02; Y02E; Y02E10/00; Y02E10/50; Y10; Y10S; Y10S148/00; Y10S148/051; Y10S148/145; Y10S438/00; Y10S438/965
Claims Analysis
Total Claims: 0
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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) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |