US3681289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clear coating system comprising an isocyanate cured terpolymer
Assignee: NL Chemicals Inc
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Filing: 1970-01-22
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Granted: 1972-08-01
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Expires: 1990-01-22
Abstract
Abstract A CLEAR COATING SYSTEM COMPRISING AN ISOCYANATE CURED TERPOLYMER OF HYDROXYETHYL METHACRYLATE, ETHYLHEXYL ACRYLATE AND DIACETONE ACRYLAMIDE, USEFUL, INTER ALIA, FOR PROTECTING WOOD SURFACES; AND PROCESS FOR MAKING SAME.
Inventors
- 👤 Uno Kruse
- 👤 Daniel F Herman
- 👤 Rudolph S Wilsher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:59
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/62; C08G18/6216; C08G18/6266; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31591
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) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |