US2844640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cadmium sulfide barrier layer cell
Assignee: Individual
•
Filing: 1956-05-11
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Granted: 1958-07-22
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Expires: 1976-05-11
Abstract
No abstract record available.
Inventors
- 👤 Donald C Reynolds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:17
CPC Classifications
H; H10; H10F; H10F10/00; H10F10/10; H10F10/18; H10F10/16; H10F10/169; H10P; H10P95/00; Y; Y02; Y02E; Y02E10/00; Y02E10/50; Y10; Y10S; Y10S148/00; Y10S148/064; Y10S148/072; Y10S420/00; Y10S420/903
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
86 words
A CADMIUM SULFIDE COMPOSITE CELL CONSISTING OF AN N-TYPE CADMIUM SULFIDE CRYSTAL, AND A P-TYPE SEMICONDUCTOR CONTACTING THE N-TYPE CADMIUM SULFIDE CRYSTAL AND WHEREIN THE P-TYPE SEMICONDUCTOR CONSISTS OF A MATERIAL SELECTED FROM THE GROUP: CUPROUS OXIDE, CUPROUS SULFIDE, CUPRIC SULFIDE AND SELENIUM, AND INCLUSIVE OF A FIRST ELECTRICAL CONTACT ATTACHED TO THE CADMIUM SULFIDE CRYSTAL, AND A SECOND ELECTRICAL CONTACT ATTACHED TO THE SEMICONDUCTOR FOR MAKING AVAILABLE THE CONTINUOUS WITHDRAWAL OF ELECTRICAL ENERGY FROM THE TWO CONTACTS WHEN SOLAR ENERGY IS APPLIED TO THE CELL.
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) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |