US2860076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamoelectric brush
Assignee: Stackpole Carbon Co
•
Filing: 1957-01-28
•
Granted: 1958-11-11
•
Expires: 1977-01-28
Abstract
No abstract record available.
Inventors
- 👤 Smisko Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:34
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/04; H01R; H01R39/00; H01R39/02; H01R39/18; H01R39/20; Y; Y10; Y10T; Y10T428/00; Y10T428/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
A DYNAMOELECTRIC BRUSH COMPRISING A BODY OF ELECTRICALLY-CONDUCTIVE CARBONACEOUS MATERIAL HAVING BY WEIGHT FROM ABOUT 0.5 TO 15 PERCENT OF SILVER IODIDE AND ABOUT 0.5 TO 20 PERCENT OF LITHIUM CARBONATE DISTRIBUTED IN THE BODY.
Claim 2
Dependent Claim
35 words
A DYNAMOELECTRIC BRUSH COMPRISING A BODY OF ELECTRICALLY-CONDUCTIVE CARBONACEOUS MATERIAL HAVING BY WEIGHT FROM ABOUT 0.5 TO 15 PERCENT OF SILVER IODIDE AND ABOUT 0.5 TO 20 PERCENT OF LITHIUM CARBONATE DISTRIBUTED IN THE BODY.
References Cited (Backward Citations)
US2414514A
Cited
US2739912A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-10 | 1962-05-12 | 1962-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-10 | 1966-05-12 | 1966-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-10 | 1970-05-12 | 1970-11-11 | $7700.00 | Window Closed / Lapsed |