US3682741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing decorative surface coverings
Assignee: Armstrong World Industries Inc
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Filing: 1969-05-23
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Granted: 1972-08-08
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Expires: 1989-05-23
Abstract
Abstract A METHOD OF PRODUCING A FLOOR COVERING OR THE LIKE HAVING DIFFERENT DEGREES OF TEXTURE ON THE FLOOR COVERING SURFACE. THE METHOD CONSISTS OF PLACING A PLASTISOL LAYER ON A BACKING SHEET. VARIOUS SIZE CHIPS ARE THEN DEPOSITED ON THE SURFACE OF THE PLASTISOL. UPON HEATING, THE CHIPS RAPIDLY SINK INTO THE PLASTISOL LAYER TO A POINT WHERE THE TOP SURFACE ON THE PLASTISOL IS APPROXIMATELY LEVEL WITH THE TOP SURFACE OF THE CHIPS. DIFFERENT DEGREES OF SURFACE TEX- TURE ARE PRODUCED BY REGULATING THE THICKNESS OF THE PLASTISOL LAYER AND THE VOLUME OF CHIPS PLACED THEREON.
Inventors
- 👤 Charles G Elliott
- 👤 David H Reed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:03
CPC Classifications
B; B05; B05D; B05D5/00; B05D5/06; B44; B44C; B44C1/00; D; D06; D06N; D06N7/00; D06N7/0005; D06N7/0028; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1089; Y10T156/109
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) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |