US2849631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically conductive cement and brush shunt connection containing the same
Assignee: Union Carbide Corp
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Filing: 1957-04-19
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Granted: 1958-08-26
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Expires: 1977-04-19
Abstract
No abstract record available.
Inventors
- 👤 Kenneth R Matz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:10
CPC Classifications
H; H01; H01R; H01R39/00; H01R39/02; H01R39/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
AN EMBEDDED SHUNT CONNECTION FOR ELECTRICAL BRUSHES AND CONTACTS HAVING A CAVITY THEREIN AND IN SAID CAVITY A FLEXIBLE CONDUCTOR OF ELECTRICITY SECURED THEREIN BY A CONDUCTIVE CEMENT CONSISTING OF 60 PERCENT BY WEIGHT OF SILBER FLAKES, THE LARGEST DIMENSION OF WHICH DOES NOT EXCEED 65 MICRONS, FROM 25.2 PERCENT TO 36 PERCENT BY WEIGHT OF AN EPOXY RESIN, 4 PERCENT TO 12 PERCENT BY WEIGHT OF FINELY DIVIDED QUARTZ FILLER MATERIAL AND FROM 2.8 PERCENT TO 4 PERCENT BY WEIGHT OF TRIETHANOLAMINE.
Claim 2
Dependent Claim
83 words
AN EMBEDDED SHUNT CONNECTION FOR ELECTRICAL BRUSHES AND CONTACTS HAVING A CAVITY THEREIN AND IN SAID CAVITY A FLEXIBLE CONDUCTOR OF ELECTRICITY SECURED THEREIN BY A CONDUCTIVE CEMENT CONSISTING OF 60 PERCENT BY WEIGHT OF SILBER FLAKES, THE LARGEST DIMENSION OF WHICH DOES NOT EXCEED 65 MICRONS, FROM 25.2 PERCENT TO 36 PERCENT BY WEIGHT OF AN EPOXY RESIN, 4 PERCENT TO 12 PERCENT BY WEIGHT OF FINELY DIVIDED QUARTZ FILLER MATERIAL AND FROM 2.8 PERCENT TO 4 PERCENT BY WEIGHT OF TRIETHANOLAMINE.
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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) | 1961-08-25 | 1962-02-24 | 1962-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-25 | 1966-02-24 | 1966-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-25 | 1970-02-24 | 1970-08-26 | $7700.00 | Window Closed / Lapsed |