US3054936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transistor
Assignee: Monsanto Chemicals Ltd
•
Filing: 1959-10-16
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Granted: 1962-09-18
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Expires: 1979-10-16
Abstract
No abstract record available.
Inventors
- 👤 Forrest V Williams
- 👤 Robert A Ruehrwein
- 👤 Dale E Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:21
CPC Classifications
H; H10; H10D; H10D48/00; H10D48/30; H10D48/32; H10D48/34; H10D48/345; H10D10/00; H10D62/00; H10D62/10; H10D62/80; H10D62/83; H10D62/834; H10D62/85; H10D62/854; H10D62/86; H10D64/00; H10D64/60; H10D99/00; H10P; H10P10/00; H10P95/00; H10P95/80; H10W; H10W72/00; H10W76/00; H10W76/10; H10W76/60; H10W99/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
A HIGH TEMPERATURE TRANSISTOR COMPRISING A BORON PHOSPHIDE SEMICONDUCTOR BODY, A FIRST HIGH MELTING POINT CONDUCTOR COMPRISING PLATINUM ATTACHED TO SAID SEMICONDUCTOR BODY FORMING AN OHMIC JUCNTION THEREON, AND AT LEAST TWO POINT CONTACT ELECTRODES ATTACHED TO SAID SEMICONDUCTOR BODY FORMING RECTIFYING JUNCTIONS THEREON.
Claim 2
Dependent Claim
44 words
A HIGH TEMPERATURE TRANSISTOR COMPRISING A BORON PHOSPHIDE SEMICONDUCTOR BODY, A FIRST HIGH MELTING POINT CONDUCTOR COMPRISING PLATINUM ATTACHED TO SAID SEMICONDUCTOR BODY FORMING AN OHMIC JUCNTION THEREON, AND AT LEAST TWO POINT CONTACT ELECTRODES ATTACHED TO SAID SEMICONDUCTOR BODY FORMING RECTIFYING JUNCTIONS THEREON.
References Cited (Backward Citations)
GB719873A
Cited
US2918396A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-17 | 1966-03-19 | 1966-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-17 | 1970-03-19 | 1970-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-17 | 1974-03-19 | 1974-09-18 | $7700.00 | Window Closed / Lapsed |