US3687714A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making a material for shoe or boot manufacture
Assignee: BK Giulini Chemie GmbH
•
Filing: 1970-10-28
•
Granted: 1972-08-29
•
Expires: 1990-10-28
Abstract
Abstract IN A METHOD FOR MANUFACTURING SHOES OR BOOTS, A MATERIAL FORMING A STIFFENER AND A FOOT-CONTACTING SURFACE IS MADE BY PROVIDING A FABRIC WITH AN AQUEOUS DISPESION CONTAINING 10-35 WEIGHT-PERCENT BUTADIENE-STYRENE COPOLYMER HAVING CARBOXYL GROUPS, SMOOTHING ONE SURFACE OF THE DISPERSION ON THE FABRIC, SOLIDIFYING THE DISPERSION FOR BONDING THE FIBERS OF THE FABRIC TOGETHER, REINFORCING THE SIDE OF THE FABRIC OPPOSITE TO THE SMOOTHED SIDE WITH A THERMOPLASTIC COATING, AND PLACING ON THE THERMOPLASTIC COATING AND ADHESIVE FOR ENABLING LAMINATION.
Inventors
- 👤 Franz Gustav Rheude
- 👤 Franz Munster
- 👤 Harald Brehmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:32
CPC Classifications
D; D06; D06N; D06N3/00; D06N3/04; D06N3/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1975-08-29 | 1976-02-28 | 1976-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-29 | 1980-02-28 | 1980-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-29 | 1984-02-28 | 1984-08-29 | $7700.00 | Window Closed / Lapsed |