US3244559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modified carbon film resistor and method of making
Assignee: Texas Instruments Inc
•
Filing: 1961-03-07
•
Granted: 1966-04-05
•
Expires: 1981-03-07
Abstract
No abstract record available.
Inventors
- 👤 David R Sivertsen
- 👤 Cecil L Slattum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:58
CPC Classifications
H; H01; H01C; H01C1/00; H01C1/02; H01C1/024; H01C1/026; H01C17/00; H01C17/02; H01C7/00; Y; Y10; Y10T; Y10T428/00; Y10T428/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A CARBON FILM RESISTOR PACKAGE COMPRISING A NONCONDUCTIVE SUBSTRATE, A CARBON FILM ON SAID SUBSTATE, A THIN REFRACTORY OXIDE COATING ON SAID FILM CONSISTING OF A THERMALLY DECOMPOSED ORGANIC COMPOUND FORMED IN A REDUCING ATMOSPHERE AND MEANS HERMETICALLY SEALING SAID FILM AND COATING.
Claim 2
Dependent Claim
43 words
A CARBON FILM RESISTOR PACKAGE COMPRISING A NONCONDUCTIVE SUBSTRATE, A CARBON FILM ON SAID SUBSTATE, A THIN REFRACTORY OXIDE COATING ON SAID FILM CONSISTING OF A THERMALLY DECOMPOSED ORGANIC COMPOUND FORMED IN A REDUCING ATMOSPHERE AND MEANS HERMETICALLY SEALING SAID FILM AND COATING.
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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) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |