US2852412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of improving the curl resistance of cork tile
Assignee: Armstrong World Industries Inc
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Filing: 1957-09-25
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Granted: 1958-09-16
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Expires: 1977-09-25
Abstract
No abstract record available.
Inventors
- 👤 Lloyd V Hassel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:48
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/10; E04C2/24; E04C2/246; B; B32; B32B; B32B27/00; B32B37/00; B32B37/0007; B32B37/0015; B32B37/10; B29; B29K; B29K2021/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/3167
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
A METHOD OF IMPROVING THE CURL RESISTANCE OF CORK TILE WHICH CURLS OBJECTIONABLY WHEN INSTALLED WITH A SOLVENT TYPE ADHESIVE, THE SOLVENT OF WHICH PENETRATES THE UNDER SURFACE OF THE TILE, COMPRISING COATING THE UNDER SURFACE OF THE TILE WITH A COATING COMPOSITION COMPRISING A MIXTURE OF A DISPERSION IN WATER OF ROSIN AND A BUTADIENE-STYRENE SYNTHETIC RUBBER LATEX IN THE PROPORTIONS ON A SOLIDS BASIS OF FROM 100 TO 300 PARTS OF ROSIN FOR EACH 100 PARTS OF BUTADIENE-STYRENE SYNTHETIC RUBBER AND DRYING THE SAME TO PROVIDE A COATING WHICH IS SEMI-PERVIOUS TO THE PASSAGE OF WATER AND OTHER SOLVENTS USED IN ADHESIVES FOR SECURING TILES TO SUPPORTING SURFACES, AND THEREAFTER SUBJECTING THE UNDER-COATED TILE TO FLEXING IN WHICH THE TILE IS FLEXED DOWNWARDLY TOWARD SAID UNDER SURFACE FIRST IN THE DIRECTION OF ONE PAIR OF THE EDGES OF THE TILE AND THEN IN THE DIRECTION OF THE OTHER PAIR OF EDGES OF THE TILE.
Claim 2
Independent Claim
156 words
A METHOD OF IMPROVING THE CURL RESISTANCE OF CORK TILE WHICH CURLS OBJECTIONABLY WHEN INSTALLED WITH A SOLVENT TYPE ADHESIVE, THE SOLVENT OF WHICH PENETRATES THE UNDER SURFACE OF THE TILE, COMPRISING COATING THE UNDER SURFACE OF THE TILE WITH A COATING COMPOSITION COMPRISING A MIXTURE OF A DISPERSION IN WATER OF ROSIN AND A BUTADIENE-STYRENE SYNTHETIC RUBBER LATEX IN THE PROPORTIONS ON A SOLIDS BASIS OF FROM 100 TO 300 PARTS OF ROSIN FOR EACH 100 PARTS OF BUTADIENE-STYRENE SYNTHETIC RUBBER AND DRYING THE SAME TO PROVIDE A COATING WHICH IS SEMI-PERVIOUS TO THE PASSAGE OF WATER AND OTHER SOLVENTS USED IN ADHESIVES FOR SECURING TILES TO SUPPORTING SURFACES, AND THEREAFTER SUBJECTING THE UNDER-COATED TILE TO FLEXING IN WHICH THE TILE IS FLEXED DOWNWARDLY TOWARD SAID UNDER SURFACE FIRST IN THE DIRECTION OF ONE PAIR OF THE EDGES OF THE TILE AND THEN IN THE DIRECTION OF THE OTHER PAIR OF EDGES OF THE TILE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-15 | 1962-03-17 | 1962-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-15 | 1966-03-17 | 1966-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-15 | 1970-03-17 | 1970-09-16 | $7700.00 | Window Closed / Lapsed |