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US3356982A
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Metal film resistor for low range and linear temperature coefficient
Assignee: Angstrohm Precision Inc
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Filing: 1964-04-13
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Granted: 1967-12-05
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Expires: 1984-04-13
Abstract
No abstract record available.
Inventors
- 👤 Solow Benjamin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:29
CPC Classifications
H; H01; H01C; H01C7/00; H01C7/06; H01C7/18; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49099; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12597; Y10T428/12639; Y10T428/12646; Y10T428/12771; Y10T428/12806; Y10T428/12826; Y10T428/12847; Y10T428/12861; Y10T428/12889
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
65 words
A METAL FILM ELECTRICAL RESISTOR COMPRISING A BASE OF ELECTRICAL INSULATING MATERIAL, A FILM OF GOLD-CHROMIUM ALLOY RESISTANCE MATERIAL ON SAID BASE, SAID ALLOY INCLUDING FROM ABOUT 97.6% TO ABOUT 98.4% GOLD BY WEIGHT OF ALLOY AND FROM ABOUT 1.6% TO ABOUT 2.4% CHROMIUM BY WEIGHT OF ALLOY; AND A THIN METAL FILM CONSISTING ESSENTIALLY OF CHROMIUM METAL VACUUM DEPOSITED ON SAID ALLOY RESISTANCE MATERIAL.
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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) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |