Patent US5223138A successfully refreshed from Google Patents.
Patent US3806401A successfully refreshed from Google Patents.
US3806401A
Expired / Lapsed
US
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Antistatic carpet construction
Assignee: Shaw Industries Group Inc
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Filing: 1972-04-03
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Granted: 1974-04-23
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Expires: 1992-04-03
Abstract
Abstract A CARPET IS DESCRIBED HAVING DURABLE ANTISTATIC PROPERTIES WHICH ARE OBTAINED BY INCORPORATING ELECTRICALLY CONDUCTIVE FIBERS IN A NONWOVEN WEB WHICH GOES TO MAKE UP AN INTEGRAL PART OF THE CARPET CONSTRUCTION. METHODS OF FORMING THE CARPET ARE DESCRIBED WHEREBY THE NONWOVEN WEB CONTAINING ELECTRICALLY CONDUCTIVE FIBER IS INCORPORATED IN THE TUFTED CARPET STRUCTURE. D R A W I N G
Inventors
- 👤 W Brinkhoff
- 👤 E Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:43
CPC Classifications
D; D05; D05C; D05C17/00; D05C17/02; D06; D06N; D06N7/00; D06N7/0063; D06N7/0068; D06N2201/00; D06N2201/02; D06N2201/0245; D06N2201/0254; D06N2201/04; D06N2201/042; D06N2201/045; D06N2209/00; D06N2209/04; D06N2209/041; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23929; Y10T428/23986; Y10T428/29; Y10T428/2904; Y10T428/2907
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-22 | 1977-10-22 | 1978-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-22 | 1981-10-22 | 1982-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-22 | 1985-10-22 | 1986-04-23 | $7700.00 | Window Closed / Lapsed |