Patent US3827931A successfully refreshed from Google Patents.
US3827931A
Expired / Lapsed
US
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Shock-proof nylon carpet system
Assignee: EVANS DEAKIN INDUSTRIES Ltd
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Filing: 1972-07-19
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Granted: 1974-08-06
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Expires: 1992-07-19
Abstract
Abstract A SHOCK-PROOF CARPET SYSTEM HAVING A FACE YARN OF TEXTURED NYLON CONTAINING UP TO ABOUT TWELVE WEIGHT PERCENT OF AN INTERNAL ADDITIVE SELECTED FROM ETHYLENE OXIDE CONDENSATION PRODUCTS, A PRIMARY BACKING OF JUITE OR SPUNBONDED SYNTHETIC MATERIAL WITH OR WITHOUT METAL FIBERS WOVEN INTO THE SAID BACKNG, A TUFT-LOCKING LATEX MADE ELECTRICALLY CONDUCTIVE BY THE ADDITIVE OF UP TO ABOUT TEN WEIGHT PERCENT OF AN ANTISTATIC MATERIAL AND/OR HAVING A FINE GAUGE METLLIC FILM, SCREEN, OR A MAT OF METAL FIBERS IMBEDDED THEREIN, AND A STANDARD SECONDARY BACKING
Inventors
- 👤 R Rothwell
- 👤 C Cipriani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:21
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/372; C; C08; C08L; C08L77/00; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23986; Y10T428/31504; Y10T428/31725; Y10T428/31739
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) | 1977-08-05 | 1978-02-04 | 1978-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-05 | 1982-02-04 | 1982-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-05 | 1986-02-04 | 1986-08-06 | $7700.00 | Window Closed / Lapsed |