US3733385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making conducting plastic articles
Assignee: Imperial Chemical Industries Ltd
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Filing: 1968-12-02
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Granted: 1973-05-15
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Expires: 1988-12-02
Abstract
Abstract A METHOD FOR MAKING CONDUCTING ARTICLES FROM THERMOPLASTIC MATERIALS CONTAINING NO MORE THAN 2% BY WEIGHT OF A CONDUCTING FILLER COMPRISES ROTATIONALLY MOULDING A DRY MIXTURE OF POWDER THERMOPLASTIC WITH FROM 0.1 TO 2% BY WEIGHT OF A POWDERED CONDUCTING FILLER SUCH AS CARBON BLACK AND IN PARTICULAR FURANCE BLACK. ALSO CONDUCTING ARTICLES MADE FROM A THERMOPLASTIC MATERIAL SUCH AS LOW DENSITY POLYTHENE CONTAINING NO MORE THAN 2% BY WEIGHT OF A CONDUCTING FILLER AND HAVING A VOLUME RESISTIVITY OF LESS THAN 1X10**8 OHMS.
Inventors
- 👤 W Reddish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:36
CPC Classifications
H; H05; H05F; H05F1/00; H05F1/02; B; B29; B29C; B29C70/00; B29C70/88; B29C70/882; H01; H01B; H01B1/00; H01B1/20; H01B1/24; H01B3/00; H01B3/002; H01B3/004; B29K; B29K2995/00; B29K2995/0003; B29K2995/0005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1976-05-14 | 1976-11-13 | 1977-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-14 | 1980-11-13 | 1981-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-14 | 1984-11-13 | 1985-05-15 | $7700.00 | Window Closed / Lapsed |