US3754065A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a floor covering including placing chips in a grid pattern
Assignee: Armstrong World Industries Inc
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Filing: 1970-03-09
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Granted: 1973-08-21
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Expires: 1990-03-09
Abstract
Abstract The sheet material is provided with a plurality of pockets in a grid-like pattern. A plurality of chips sized to fit in the pockets are dumped upon the sheet material. The sheet material passes across a horizontal vibrating table which positions the chips in the pockets of the grid. The sheet material then passes across a slanted vibrating table which removes excessive chips from the sheet material. The chips are now consolidated to the sheet material by appropriate heat and pressure.
Inventors
- 👤 J Hofmann
- 👤 D Reed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:38
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/0862; Y; Y10; Y10S; Y10S428/00; Y10S428/906; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1023; 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) | 1976-08-20 | 1977-02-19 | 1977-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-20 | 1981-02-19 | 1981-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-20 | 1985-02-19 | 1985-08-21 | $7700.00 | Window Closed / Lapsed |