US3115386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of manufacturing floor and wall covering
Assignee: Armstrong World Industries Inc
•
Filing: 1960-11-29
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Granted: 1963-12-24
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Expires: 1980-11-29
Abstract
No abstract record available.
Inventors
- 👤 David T Zentmyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:16
CPC Classifications
B; B32; B32B; B32B27/00; D; D06; D06N; D06N3/00; D06N3/0086; D06N3/0095; D06N7/00; D06N7/0005; D06N7/0028
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
157 words
IN A METHOD OF FORMING A VINYL PLASTIC SHEET FROM A PLURALITY OF PARTICLES OF VINYL COMPOSITION ON A PRESS, THE STEPS COMPRISING PROVIDING BETWEEN THE SURFACE OF SAID PARTICLES AND A PRESSING SURFACE A RELEASE LAYER OF A COMPLEX COMPOUND OF THE WERNER TYPE IN WHICH A TRIVALENT NUCLEAR CHROMIUM ATOM IS COORDINATED WITH AN ACRYLIC CARBOXYLIC ACETO GROUP HAVING AT LEAST TEN CARBON ATOMS AND HAVING APPLIED THERETO A COATING COMPRISING THE DRIED RESIDUE OF AN EMULSION OF A COPOLYMER OF VINYL CHLORIDE AND VINYL ACETATE, WITH SAID COATING OF VINYL CHORIDE AND VINYL ACETATE LYING IN DIRECT ENGAGEMENT WITH SAID PARTICLES, CONSOLIDATING SAID VINYL PARTICLES INTO A SHEET BY THE APPLICATION OF HEAT AND PRESSURE THERETO THROUGH THE RELEASE LAYER AND TRANSFERRING THE COATING FROM SAID RELEASE LAYER AND FUSING IT ONTO THE SURFACE OF SAID CONSOLIDATED PLASTIC SHEET, DISCONTINUING THE APPLICATION OF PRESSURE, AND RELEASING SAID CONSOLIDATED VINYL SHEET FROM SAID PRESSING SURFACE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-23 | 1967-06-24 | 1967-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-23 | 1971-06-24 | 1971-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-23 | 1975-06-24 | 1975-12-24 | $7700.00 | Window Closed / Lapsed |