Patent US3733239A successfully refreshed from Google Patents.
US3733239A
Expired / Lapsed
US
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Glass-organic fiber scrim for flooring
Assignee: Armstrong World Industries Inc
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Filing: 1971-11-19
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Granted: 1973-05-15
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Expires: 1991-11-19
Abstract
Abstract A GLASS SCRIM IS OFTEN PLACED AS THE MIDDLE LAYER OF A LAMINATED HARD SURFACE FLOORING STRUCTURE. THE SCRIM IS NORMALLY IN A PLAIN OPEN WEAVE. HEREIN THE STRANDS OF GLASS FIBER ARE ALTERNATED WITH STRANDS OF AN ORGANIC THERMOPLASTIC MATERIAL SO THAT CERTAIN GLASS FIBER STRANDS ARE NOT PLACED IN AN OVERLYING RELATIONSHIP IN A CERTAIN DIRECTION OF THE WEAVE.
Inventors
- 👤 J George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:46
CPC Classifications
D; D03; D03D; D03D9/00; D03D15/00; D03D15/20; D03D15/242; D03D15/267; D03D15/283; D10; D10B; D10B2101/00; D10B2101/02; D10B2101/06; D10B2321/00; D10B2321/04; D10B2321/041; D10B2503/00; D10B2503/04; D10B2505/00; D10B2505/02; Y; Y10; Y10T; Y10T442/00; Y10T442/10; Y10T442/102; Y10T442/107
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) | 1976-05-14 | 1976-11-13 | 1977-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-14 | 1980-11-13 | 1981-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-14 | 1984-11-13 | 1985-05-15 | $7700.00 | Window Closed / Lapsed |