US2921036A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature compensating resistor
Assignee: Standard Coil Products Co Inc
•
Filing: 1954-08-03
•
Granted: 1960-01-12
•
Expires: 1974-08-03
Abstract
No abstract record available.
Inventors
- 👤 Henry D Frazier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:21
CPC Classifications
H; H01; H01C; H01C7/00; H01C7/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
A RESITOR COMPOSITION CONSISTING ESSENTIALLY OF 45-95% OF A THERMOSETTING RESIN, 2-3% CARBON BLACK, 1-40% OF A COMPOUND FROM THE GROUP CONSISTING OF TUNGSTIC OXIDE AND TUNGSTIC ACID AND PLASTICIZER IN AN AMOUNT UP TO 80%.
Claim 2
Dependent Claim
36 words
A RESITOR COMPOSITION CONSISTING ESSENTIALLY OF 45-95% OF A THERMOSETTING RESIN, 2-3% CARBON BLACK, 1-40% OF A COMPOUND FROM THE GROUP CONSISTING OF TUNGSTIC OXIDE AND TUNGSTIC ACID AND PLASTICIZER IN AN AMOUNT UP TO 80%.
References Cited (Backward Citations)
US2027277A
Cited
US1947692A
Cited
US2471931A
Cited
US2526059A
Cited
US2583732A
Cited
US2679569A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |