Patent US1150572A successfully refreshed from Google Patents.
US2588254A
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Photoelectric and thermoelectric device utilizing semiconducting material
Assignee: Purdue Research Foundation
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Filing: 1950-05-09
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Granted: 1952-03-04
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Expires: 1970-05-09
Abstract
No abstract record available.
Inventors
- 👤 Lark-Horovitz Karl
- 👤 Benzer Seymour
- 👤 Robert E Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:48
CPC Classifications
H; H02; H02S; H02S10/00; H02S10/30; H10; H10F; H10F99/00; F; F24; F24S; F24S80/00; F24S80/50; G; G01; G01J; G01J5/00; G01J5/10; G01J5/20; G01J5/22; G01J5/24; G21; G21H; G21H1/00; G21H1/10; H10F10/00; H10F10/10; H10P; H10P30/00; H10P30/20; Y; Y02; Y02E; Y02E10/00; Y02E10/40; Y02E10/50; Y10; Y10S; Y10S148/00; Y10S148/165
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
A DEVICE COMPRISING A UNITARY BODY OF GERMANIUM HAVING A PLURALITY OF ALTERNATING REGIONS OF N-TYPE AND P-TYPE CHARACTERISITICS AND MEANS CONNECTING SAID REGIONS IN SERIES AIDING RELATIONSHIP.
Claim 2
Independent Claim
28 words
A DEVICE COMPRISING A UNITARY BODY OF GERMANIUM HAVING A PLURALITY OF ALTERNATING REGIONS OF N-TYPE AND P-TYPE CHARACTERISITICS AND MEANS CONNECTING SAID REGIONS IN SERIES AIDING RELATIONSHIP.
References Cited (Backward Citations)
US2504627A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-04 | 1955-09-03 | 1956-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-04 | 1959-09-03 | 1960-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-04 | 1963-09-03 | 1964-03-04 | $7700.00 | Window Closed / Lapsed |