US3574019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a laminated fastening device
Assignee: American Velcro Inc
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Filing: 1968-08-23
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Granted: 1971-04-06
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Expires: 1988-08-23
Abstract
Abstract A METHOD OF MAKING A FASTENING DEVICE BY EXTRUDING PLASTIC AS A SUBSTANSTIALLY RECTANGULAR STRIP HAVING A CONCAVE BASE AND A CONVEX SURFACE COOLING THE EXTRUDED STRIP. A TAPE MEMBER IS COATED ON ITS UNDER SURFACE WITH A THERMOPLASTIC; THE OPPOSITE SURFACE OF THE TAPE MEMBER HAS A PLURALITY OF HOOKING ELEMENTS EXTENDING THEREFROM. THE THERMOPLASTIC ADHESIVE IS THEN HEATED AND THE ADHESIVE COATED SURFACE OF THE TAPE FASTENER IS COMBINED WITH THE CONVEX SURFACE OF THE COOLED VINYL STRIP AND PASSED THROUGH COMPLEMEDNTARY CONCAVE-CONVEX PRESSURE ROLLS TAILORED TO THE FORM OF THE EXTRUDED STRIP TO ACHIEVE AN ADHESIVE BOND ALONG THE ENTIRE CURVED SURFACE.
Inventors
- 👤 Laurent H Girard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:57
CPC Classifications
A; A47; A47G; A47G27/00; A47G27/04; A47G27/0437; A47G27/045; A44; A44B; A44B18/00; A44B18/0069; E; E04; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/088; E04F13/0882; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24008; Y10T428/24017
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) | 1974-04-05 | 1974-10-05 | 1975-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-05 | 1978-10-05 | 1979-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-05 | 1982-10-05 | 1983-04-06 | $7700.00 | Window Closed / Lapsed |