US3636199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic board inlaid with moisture-cure urethane and method therefor
Assignee: Essex Chemical Corp
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Filing: 1969-02-04
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Granted: 1972-01-18
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Expires: 1989-02-04
Abstract
Abstract PRODUCTION OF SYNTHETIC BOARDS INLAID WITH MOISTURE-CURE URETHANE COMPOSITIONS BY COMPRESSING CELLULOSIC MATERIAL AND RESIN BINDER CONTAINING MOISTURE AT A TEMPERATURE WITHIN THE RANGE OF 60-100*F TO FORM A SYNTHETIC BOARD SUBSTRATE. A MOISTURE-CURE URETHANE COATING COMPOSITION HAVING FREE-ISCOCYANATE GROUPS IS APPLIED TO THE SYNTHETIC BOARD SUBSTRATE WHICH IS THEN COMPRESSED AT A TEMPERATURE ABOVE 200*F. FOR AT LEAST 1 MINUTE.
Inventors
- 👤 Theodore E Jenks
- 👤 Edward R Bittner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:29
CPC Classifications
C; C08; C08L; C08L97/00; C08L97/02; C09; C09D; C09D175/00; C09D175/04; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/31504; Y10T428/31551; Y10T428/31591; Y10T428/31594; Y10T428/31942; Y10T428/31949; Y10T428/31957; Y10T428/3196
Claims Analysis
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References Cited (Backward Citations)
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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) | 1975-01-17 | 1975-07-19 | 1976-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-17 | 1979-07-19 | 1980-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-17 | 1983-07-19 | 1984-01-18 | $7700.00 | Window Closed / Lapsed |