US3582445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carpet having durable antistatic properties
Assignee: Teijin Ltd
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Filing: 1968-11-18
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Granted: 1971-06-01
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Expires: 1988-11-18
Abstract
Abstract A CARPET HAVING DURABLE ANTISTATIC PROPERTIES, SAID CARPET CONTAINING ABOUT 0.01% TO ABOUT 10% BY WEIGHT OF AN ELECTRICALLY CONDUCTIVE FIBER IN ITS SURFACE STRUCTURE, CHARACTERIZED IN THAT SAID ELECTRICALLY CONDUCTIVE FIBER COMPRISES A SUBSTRATE OF CHEMICAL FIBER AND AN ELECTRICALLY CONDUCTIVE COATING FORMED THEREON, SAID ELECTRICALLY CONDUCTIVE FIBER HAVING THE FUNCTIONAL PROPERTIES TEXTILE FIBERS.
Inventors
- 👤 Tomomi Okuhashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:37
CPC Classifications
D; D06; D06N; D06N7/00; D06N7/0005; D06N7/0039; D06N7/0042; D02; D02G; D02G3/00; D02G3/44; D02G3/441; D02G3/445; D06Q; D06Q1/00; D06Q1/04; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S57/00; Y10S57/901; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23986; Y10T428/23993
Claims Analysis
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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) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |