US3712845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tile floor covering and method of covering a floor surface
Assignee: Dura Tufting GmbH
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Filing: 1971-03-15
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Granted: 1973-01-23
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Expires: 1991-03-15
Abstract
Abstract TEXTILE TILES ARE COATED ON THEIR UNDERSIDES WITH FILLED POLYPROPYLENE AND ARE THEN PLACED, NEXT TO ONE ANOTHER, ON A LAYER OF STABLIZED POLYEXTER, POLYETHYLENE OR POLYVINYL CHLORIDE. D R A W I N G
Inventors
- 👤 J Hartung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:40
CPC Classifications
A; A47; A47G; A47G27/00; A47G27/04; A47G27/0475; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1089; Y10T428/00; Y10T428/16; Y10T428/163; Y10T428/164; Y10T428/26; Y10T428/31504; Y10T428/31786; Y10T428/31797
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) | 1976-01-23 | 1976-07-24 | 1977-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-23 | 1980-07-24 | 1981-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-23 | 1984-07-24 | 1985-01-23 | $7700.00 | Window Closed / Lapsed |