US3303370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically conductive solid lubricant members and process and apparatus employing them
Assignee: Westinghouse Electric Corp
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Filing: 1963-11-04
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Granted: 1967-02-07
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Expires: 1983-11-04
Abstract
No abstract record available.
Inventors
- 👤 David J Boes
- 👤 Johnston W Dwight
- 👤 Lawrence E Moberly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:01
CPC Classifications
C; C10; C10M; C10M7/00; F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/10; H; H01; H01R; H01R43/00; H01R43/14; C10M2201/00; C10M2201/04; C10M2201/041; C10M2201/042; C10M2201/05; C10M2201/06; C10M2201/065; C10M2201/066; C10N; C10N2040/00; C10N2040/02; C10N2040/14; C10N2040/16; C10N2040/17; C10N2050/00; C10N2050/08; C10N2050/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
38 words
IN A DYNAMOELECTRIC MACHINE, A METALLIC CURRENT COLLECTOR, A CARBON BRUSH DISPOSED IN SLIDING CONTACT WITH THE METALLIC CURRENT COLLECTOR THE CARBON BRUSH COMPRISING AN EFFECTIVE QUANTITY OF AT LEAST 1/2% BY WEIGHT OF NIOBIUM DISELENIDE INCORPORATED THEREIN.
References Cited (Backward Citations)
US2589582A
Cited
US3014865A
Cited
US2854597A
Cited
US2780743A
Cited
US2946907A
Cited
US3042822A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |