Patent US2833678A successfully refreshed from Google Patents.
US2833678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of surface alloying with aluminum-containing solder
Assignee: RCA Corp
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Filing: 1955-09-27
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Granted: 1958-05-06
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Expires: 1975-09-27
Abstract
No abstract record available.
Inventors
- 👤 Lorne D Armstrong
- 👤 Michael J Bentivegna
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:54
CPC Classifications
C; C30; C30B; C30B31/00; C30B31/04; H; H10; H10P; H10P95/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
SEMICONDUCTOR DEVICE COMPRISING A SEMICONDUCTIVE BODY OF MATERIAL SELECTED FROM THE GROUP CONSISTING OF GERMANIUM AND SILICON AND AN ELECTRODE SURFACE ALLOYED THERETO, SAID ELECTRODE CONSISTING ESSENTIALLY OF AN ALLOY OF INDIUM WITH 0.1% TO 10% COPPER, UP TO 2% ALUMINUM, AND INCLUDING A SMALL PROPORTION OF THE MATERIAL OF SAID BODY.
Claim 2
Dependent Claim
52 words
SEMICONDUCTOR DEVICE COMPRISING A SEMICONDUCTIVE BODY OF MATERIAL SELECTED FROM THE GROUP CONSISTING OF GERMANIUM AND SILICON AND AN ELECTRODE SURFACE ALLOYED THERETO, SAID ELECTRODE CONSISTING ESSENTIALLY OF AN ALLOY OF INDIUM WITH 0.1% TO 10% COPPER, UP TO 2% ALUMINUM, AND INCLUDING A SMALL PROPORTION OF THE MATERIAL OF SAID BODY.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-05 | 1961-11-04 | 1962-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-05 | 1965-11-04 | 1966-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-05 | 1969-11-04 | 1970-05-06 | $7700.00 | Window Closed / Lapsed |