US4510078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oiled, electrically conductive carbon black
Assignee: Union Carbide Corp
•
Filing: 1983-08-15
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Granted: 1985-04-09
•
Expires: 2003-08-15
Abstract
Abstract Electrically conductive compositions comprising an ethylene polymer, a mineral filler and carbon black having a surface area greater than about 500 m 2 /gram, these compositions being useful as extrudates about electrical conductors providing conductive shields thereon.
Inventors
- 👤 Aspy K. Mehta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:36
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/20; H01B1/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
Carbon black having a surface area of about 1000 m 2 /gram oiled with a white mineral oil of lubricating viscosity, by admixing said carbon black with said white mineral oil in a weight ratio of carbon black to oil of about 3:1 to about 1:1.
Claim 2
Dependent Claim
46 words
Carbon black having a surface area of about 1000 m 2 /gram oiled with a white mineral oil of lubricating viscosity, by admixing said carbon black with said white mineral oil in a weight ratio of carbon black to oil of about 3:1 to about 1:1.
References Cited (Backward Citations)
US2440299A
Cited
US3105825A
Cited
US3206419A
Cited
US3203921A
Cited
GB1076849A
Cited
US3351495A
Cited
GB1158974A
Cited
US4008113A
Cited
US4098968A
Cited
US4026863A
Cited
US4321162A
Cited
US4151126A
Cited
US4360627A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-04-08 | 1988-10-08 | 1989-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-08 | 1992-10-08 | 1993-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-08 | 1996-10-08 | 1997-04-09 | $7700.00 | Window Closed / Lapsed |