US3018426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric contacts
Assignee: RCA Corp
•
Filing: 1959-10-19
•
Granted: 1962-01-23
•
Expires: 1979-10-19
Abstract
No abstract record available.
Inventors
- 👤 Ruppel Wolfgang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:37
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/26; H10; H10D; H10D99/00; H10P; H10P95/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
AN ELECTRICAL DEVICE COMPRISING A SINGLE CRYSTAL OF INSULATING CADMIUM SULFIDE HAVING A RESISTIVITY GREATER THAN 1010 OHM-CM, AND BEING RELATIVELY FREE OF TRAPPING IMPERFECTIONS, A FIRST ELECTRODE CONSISTING ESSENTIALLY OF CRYSTALLINE TELLURIUM CONTACTING SAID CRYSTAL, SAID FIRST
Claim 2
Dependent Claim
38 words
AN ELECTRICAL DEVICE COMPRISING A SINGLE CRYSTAL OF INSULATING CADMIUM SULFIDE HAVING A RESISTIVITY GREATER THAN 1010 OHM-CM, AND BEING RELATIVELY FREE OF TRAPPING IMPERFECTIONS, A FIRST ELECTRODE CONSISTING ESSENTIALLY OF CRYSTALLINE TELLURIUM CONTACTING SAID CRYSTAL, SAID FIRST
References Cited (Backward Citations)
US1961825A
Cited
US2854611A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-22 | 1965-07-24 | 1966-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-22 | 1969-07-24 | 1970-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-22 | 1973-07-24 | 1974-01-23 | $7700.00 | Window Closed / Lapsed |