US3684600A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot melt carpet backsizing process
Assignee: EIDP Inc
•
Filing: 1970-04-10
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Granted: 1972-08-15
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Expires: 1990-04-10
Abstract
Abstract DLES AND BOND THE INDIVIDUAL FIBER FILAMENTS TO THE PRIMARY BACKING MATERIAL. IN A PROCESS FOR PREPARING A CARPET COMPRISING FORMING A TUFTED STRUCTURE OF A PRIMARY BACKING MATERIAL STITCHED WITH CLOSELY SPACED ERECT LOOPS OF FIBER BUNDLES AND APPLYING TO THE BACKSIDE OF THE TUFTED STRUCTURE A HOT MELT ADHESIVE BACKSIZING COMPOSITION; THE IMPROVEMENT COMPRISING, APPLYING TO THE BACKSIDE OF THE TUFTED STRUCTURE, AT A TIME PRIOR TO THE APPLICATION OF THE HOT MELT ADHESIVE BACKSIZING COMPOSITION, A LOW VISCOSITY (2-2000 CPS.) PRECOAT ADHESIVE WHICH SERVES TO PENETRATE THE FIBER BUN-
Inventors
- 👤 George Elmer Smedberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:57
CPC Classifications
D; D06; D06N; D06N7/00; D06N7/0063; D06N7/0071; D06N7/0078; D06N7/0073; D06N2203/00; D06N2203/04; D06N2203/042; D06N2203/06; D06N2203/061
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) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |