Patent FR2240026A1 successfully refreshed from Google Patents.
US3188537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for asymmetric conduct of current
Assignee: General Electric Co
•
Filing: 1961-08-31
•
Granted: 1965-06-08
•
Expires: 1981-08-31
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert H Wentorf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:02
CPC Classifications
H; H10; H10D; H10D62/00; H10D62/80; H10D62/83; H10D62/8303; H10D8/00; H10D8/30; H10P; H10P95/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
72 words
A POINT CONTACT P-P TYPE ELECTRICAL RECTIFIER COMPRISING IN COMBINATION, ELECTRICAL NONCONDUCTIVE SUPPORT MEANS, A RECTIFICATION JUNCTION COMPRISING A PAIR OF P-TYPE SEMICONDUCTING CRYSTALS AFFIXED TO SAID SUPPORT, SAID CRYSTALS BEING TAKEN FROM THE CLASS CONSISTING OF DIAMOND CRYSTALS AND CUBIC FORM OF BORON NITRIDE CRYSTALS, SAID CRYSTALS BEING ELECTRICALLY CONNECTED IN CRYSTAL-TO CRYSTAL POINT CONTACT SERIES RELATIONSHIP, AND TERMIANL MEANS ELECTRICALLY CONNECTED TO SAID CRYSTALS TO APPLY CURRENT TO SAID CRYSTALS.
References Cited (Backward Citations)
US2932594A
Cited
US2988676A
Cited
US2980833A
Cited
US3078232A
Cited
US3141802A
Cited
US3141855A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-07 | 1968-12-07 | 1969-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-07 | 1972-12-07 | 1973-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-07 | 1976-12-07 | 1977-06-08 | $7700.00 | Window Closed / Lapsed |