Patent US2959698A successfully refreshed from Google Patents.
US2959698A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated carbon brush
Assignee: General Electric Co
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Filing: 1957-12-31
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Granted: 1960-11-08
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Expires: 1977-12-31
Abstract
No abstract record available.
Inventors
- 👤 Albert C Titus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:13
CPC Classifications
H; H01; H01R; H01R39/00; H01R39/02; H01R39/18; H01R39/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A CARBON BRUSH FOR USE IN A DYNAMOELECTRIC MACHINE COMPRISING A PLURALITY OF LIMINATIONS CONSISTING ESSENTIALLY OF CARBON SECURED TOGETHER BY AN INORGANIC CEMENT TO FORM A BRUSH BODY, SAID INORGANIC CEMENT COMPRISING A MATERIAL SELECTED FROM THE CLASS CONSISTING OF LEAD BORATES, BORIC OXIDE AND SILVER CHLORIDE.
Claim 2
Dependent Claim
48 words
A CARBON BRUSH FOR USE IN A DYNAMOELECTRIC MACHINE COMPRISING A PLURALITY OF LIMINATIONS CONSISTING ESSENTIALLY OF CARBON SECURED TOGETHER BY AN INORGANIC CEMENT TO FORM A BRUSH BODY, SAID INORGANIC CEMENT COMPRISING A MATERIAL SELECTED FROM THE CLASS CONSISTING OF LEAD BORATES, BORIC OXIDE AND SILVER CHLORIDE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-08 | 1964-05-09 | 1964-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-08 | 1968-05-09 | 1968-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-08 | 1972-05-09 | 1972-11-08 | $7700.00 | Window Closed / Lapsed |