US3175929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solar energy converting apparatus
Assignee: AT&T Inc
•
Filing: 1960-05-24
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Granted: 1965-03-30
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Expires: 1980-05-24
Abstract
No abstract record available.
Inventors
- 👤 David A Kleinman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:30
CPC Classifications
H; H10; H10F; H10F10/00; H10F10/10; H10F10/14; H10F99/00; H10D; H10D62/00; H10D62/10; H10P; H10P95/00; Y; Y02; Y02E; Y02E10/00; Y02E10/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A SEMICONDUCTOR ELEMENT FOR CONVERTING SOLAR RADIATION INTO ELECTRICAL ENERGY COMPRISING A SEMICONDUCTOR BODY HAVING TWO MAJOR OPPOSED SURFACES AND INCLUDING THEREIN TWO REGIONS OF A FIRST CONDUCTIVITY TYPE WITH AN INTERPOSED REGION OF AN OPPOSITE CONDUCTIVITY TYPE, SAID REGIONS DEFINING A FIRST AND A SECOND P-N JUNCTION THEREBETWEEN, WHICH JUNCTIONS ARE SUBSTANTIALLY COEXTENSIVE AND PARALLEL, SAID FIRST JUNCTION BEING IN ENERGY CONVERTING RELATION TO ONE OF SAID MAJOR OPPOSED SURFACES, SAID SECOND JUNCTION BEING A DISTANCE
Claim 2
Dependent Claim
77 words
A SEMICONDUCTOR ELEMENT FOR CONVERTING SOLAR RADIATION INTO ELECTRICAL ENERGY COMPRISING A SEMICONDUCTOR BODY HAVING TWO MAJOR OPPOSED SURFACES AND INCLUDING THEREIN TWO REGIONS OF A FIRST CONDUCTIVITY TYPE WITH AN INTERPOSED REGION OF AN OPPOSITE CONDUCTIVITY TYPE, SAID REGIONS DEFINING A FIRST AND A SECOND P-N JUNCTION THEREBETWEEN, WHICH JUNCTIONS ARE SUBSTANTIALLY COEXTENSIVE AND PARALLEL, SAID FIRST JUNCTION BEING IN ENERGY CONVERTING RELATION TO ONE OF SAID MAJOR OPPOSED SURFACES, SAID SECOND JUNCTION BEING A DISTANCE
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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) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |