US3198999A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-injecting, ohmic contact for semiconductive devices
Assignee: AT&T Inc
•
Filing: 1960-03-18
•
Granted: 1965-08-03
•
Expires: 1980-03-18
Abstract
No abstract record available.
Inventors
- 👤 Lawrence K Baker
- 👤 Thomas E Magill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:43
CPC Classifications
H; H10; H10W; H10W76/00; H10W76/10; H10W76/12; H10W76/15; H10W76/153; H01; H01B; H01B1/00; H10P; H10P95/00; H10W72/00; H10W72/50; H10W72/531; H10W72/5363; H10W72/851; H10W72/874; H10W72/884
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
AN OHMIC CONNECTION BETWEEN A HEADER AND A SEMICONDUCTIVE BODY COMPRISING A TERNARY ALLOY INTERFACE WHICH INCLUDES A PORTION OF THE SEMICONDUCTIVE BODY, AND APPROXIMATELY EQUAL PARTS BY WEIGHT OF GOLD AND COPPER.
Claim 2
Dependent Claim
33 words
AN OHMIC CONNECTION BETWEEN A HEADER AND A SEMICONDUCTIVE BODY COMPRISING A TERNARY ALLOY INTERFACE WHICH INCLUDES A PORTION OF THE SEMICONDUCTIVE BODY, AND APPROXIMATELY EQUAL PARTS BY WEIGHT OF GOLD AND COPPER.
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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) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |