Patent US2989420A successfully refreshed from Google Patents.
US2989420A
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Coated articles
Assignee: Rohm and Haas Co
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Filing: 1958-11-13
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Granted: 1961-06-20
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Expires: 1978-11-13
Abstract
No abstract record available.
Inventors
- 👤 Zdanowski Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:26
CPC Classifications
D; D06; D06N; D06N3/00; D06N3/04; D06N3/10; C; C08; C08F; C08F279/00; C08F279/02; D06M; D06M15/00; D06M15/693; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31844; Y10T442/00; Y10T442/20; Y10T442/273
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
108 words
AS AN ARTICLE OF MANUFACTURE, A FELT-BASE TYPE OF FLOOR-COVERING MATERIAL HAVING A DECORATIVE COATING OVER WHICH THERE IS IMPOSED AS THE WEAR SURFACE OF THE FLOORCOVERING MATERIAL A COATING COMPRISING A GRAFT COPOLYMER OF A MIXTURE OF METHYL METHACRYLATE AND ISOBORNYL METHACRYLATE IN WHICH THE PROPORTION OF THE LATTER IS UP TO 150% BY WEIGHT OF THE FORMER OBTAINED BY POLYMERIZING THE MONOMERIC MIXTURE IN AN AQUEOUS DISPERSION OF A POLYMER OF 50 TO 100% BY WEIGHT OF BUTADIENE WITH UP TO 50% BY WEIGHT OF STYRENE, THE PROPORTION OF THE MIXTURE OF METHACYLATES BEING ABOUT 50 TO 90% BY WEIGHT OF THE METHACRYLATE-BUTADIENE-STYRENE GRAFT COPOLYMER OBTAINED.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |