Patent US3344387A successfully refreshed from Google Patents.
US3344387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable thin film electrical component
Assignee: AT&T Inc
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Filing: 1964-10-07
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Granted: 1967-09-26
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Expires: 1984-10-07
Abstract
No abstract record available.
Inventors
- 👤 Henry F Kinkel
- 👤 Radetsky Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:23
CPC Classifications
H; H01; H01C; H01C1/00; H01C1/16; H01C1/08; H01C1/084; H01C1/14; H01C7/00; H01C7/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A THIN FILM POWER RESISTOR COMPRISING: A NON-CONDUCTING BASE, A PLURALITY OF TERMINALS CONNECTED TO AND PROJECTING FROM ONE END OF SAID BASE, A METALLIC HEAT SINK MOUNTED TO SAID BASE, A PLURALITY OF THIN FILM MODULES MOUNTED DIRECTLY ON ONE SIDE OF SAID BASE, EACH OF SAID THIN FILM MODULES HAVING A RESISTANCE PATH, A PLURALITY OF FIRST CONTACTS MOUNTED TO EACH OF SAID THIN FILM MODULES AT PRESELECTED LOCATIONS ALONG SAID RESISTANCE PATH IN ORDER THAT A DESIRED LENGTH OF THE RESISTANCE PATH CAN BE SELECTED BY THE DESIGNATION OF TWO OF SAID PLURALITY OF CONTACTS, AND
Claim 2
Dependent Claim
99 words
A THIN FILM POWER RESISTOR COMPRISING: A NON-CONDUCTING BASE, A PLURALITY OF TERMINALS CONNECTED TO AND PROJECTING FROM ONE END OF SAID BASE, A METALLIC HEAT SINK MOUNTED TO SAID BASE, A PLURALITY OF THIN FILM MODULES MOUNTED DIRECTLY ON ONE SIDE OF SAID BASE, EACH OF SAID THIN FILM MODULES HAVING A RESISTANCE PATH, A PLURALITY OF FIRST CONTACTS MOUNTED TO EACH OF SAID THIN FILM MODULES AT PRESELECTED LOCATIONS ALONG SAID RESISTANCE PATH IN ORDER THAT A DESIRED LENGTH OF THE RESISTANCE PATH CAN BE SELECTED BY THE DESIGNATION OF TWO OF SAID PLURALITY OF CONTACTS, AND
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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) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |