US3177413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semi-conductor device
Assignee: Motors Liquidation Co
•
Filing: 1955-07-28
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Granted: 1965-04-06
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Expires: 1975-07-28
Abstract
No abstract record available.
Inventors
- 👤 Edward G Roka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:27
CPC Classifications
H; H10; H10W; H10W70/00; H10W70/20; H10W72/00; H10W72/20; H10W76/00; H10W76/10; H10W76/12; H10W76/13; H10W76/132; H10W76/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
IN A TRANSISTOR ASSEMBLY, A SHEET OF GEMANIUM HAVING INDIUM RINGS ALLOYED TO THE OPPOSITE FACES THEREOF, A SUPPORTING BASE OF ELECTRICALLY CONDUCTIVE MATERIAL HAVING A RAISED HOLLOW CENTRAL PORTION HAVING RADIAL OPENINGS THERETHROUGH AND WITH AN UPPER SURFACE OF THE SAME CONFIGURATION AND AREA AS ONE OF THE RINGS, MEANS FOR SECURING SAID ONE RING TO SAID UPPER SURFACE, A PLURALITY OF CON-
Claim 2
Dependent Claim
64 words
IN A TRANSISTOR ASSEMBLY, A SHEET OF GEMANIUM HAVING INDIUM RINGS ALLOYED TO THE OPPOSITE FACES THEREOF, A SUPPORTING BASE OF ELECTRICALLY CONDUCTIVE MATERIAL HAVING A RAISED HOLLOW CENTRAL PORTION HAVING RADIAL OPENINGS THERETHROUGH AND WITH AN UPPER SURFACE OF THE SAME CONFIGURATION AND AREA AS ONE OF THE RINGS, MEANS FOR SECURING SAID ONE RING TO SAID UPPER SURFACE, A PLURALITY OF CON-
References Cited (Backward Citations)
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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) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |