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US2837618A
Expired / Lapsed
US
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Semi-conductor alloys
Assignee: EDWARD SAGERMAN
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Filing: 1954-08-06
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Granted: 1958-06-03
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Expires: 1974-08-06
Abstract
No abstract record available.
Inventors
- 👤 Gildart Lee William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:25
CPC Classifications
H; H01; H01C; H01C7/00; H01C7/04; H01B; H01B1/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A SEMI-CONDUCTOR ALLOY SUITABLE FOR USE IN THERMISTORS CONSISTING OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE TRISELENIDES AND THE TRISULFIDES OF THE GROUP CONSISTING OF ANTIMONY AND BISMUTH, ALLOYED WITH AT LEAST ABOUT 2% BY WEIGHT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ARSENIC TRISELENIDE AND ARSENIC TRISULFIDE.
Claim 2
Dependent Claim
53 words
A SEMI-CONDUCTOR ALLOY SUITABLE FOR USE IN THERMISTORS CONSISTING OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE TRISELENIDES AND THE TRISULFIDES OF THE GROUP CONSISTING OF ANTIMONY AND BISMUTH, ALLOYED WITH AT LEAST ABOUT 2% BY WEIGHT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ARSENIC TRISELENIDE AND ARSENIC TRISULFIDE.
References Cited (Backward Citations)
US2462162A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-02 | 1961-12-02 | 1962-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-02 | 1965-12-02 | 1966-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-02 | 1969-12-02 | 1970-06-03 | $7700.00 | Window Closed / Lapsed |