Patent US3778291A successfully refreshed from Google Patents.
US3778291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing a decorative surface covering
Assignee: Armstrong World Industries Inc
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Filing: 1972-02-11
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Granted: 1973-12-11
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Expires: 1992-02-11
Abstract
Abstract A PROCESS FOR PRODUCING A FLEXIBLE RESINOUS COMPOSITION SURFACE COVERING BY PREPARING A GRANULAR RESINOUS DRYBLEND CONTAINING A CATALYST ADAPTED TO CURE A NONCATALYSTCONTAINING RESINOUS SYSTEM DIFFERENT FROM THAT OF THE DRYBLEND, COMPRISING DEPOSITING A LAYER OF THE CATALYST-CONTAINING DRYBLEND ON A BACKING SHEET, HEATING THE GRANULES TO FORM A POROUS COHESIVE LAYER THEREFROM, COOLING THE LAYER AND APPLYING TO THE POUOUS LAYER A DIFFERENT, NONCATALYZED CROSS-LINKABLE RESINOUS LIQUID WHICH WILL PENETRATE THEREINTO, AND APPLYING HEAT AND/OR HEAT AND PRESSURE TO CAUSE CATALYTIC CROSS-LINKING OF THE RESINOUS LIQUID AND FUSION OF THE RESINOUS GRANULES.
Inventors
- 👤 C Elliott
- 👤 R Mazzur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:31
CPC Classifications
D; D06; D06N; D06N7/00; D06N7/0005; D06N7/0028; D06N3/00; D06N3/04; D06N3/06; D06N3/08; Y; Y10; Y10S; Y10S264/00; Y10S264/60
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) | 1976-12-10 | 1977-06-11 | 1977-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-10 | 1981-06-11 | 1981-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-10 | 1985-06-11 | 1985-12-11 | $7700.00 | Window Closed / Lapsed |