Patent US3669716A successfully refreshed from Google Patents.
US3669716A
Expired / Lapsed
US
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High energy curing of photopolymerizable nonair inhibited polyester resin coatings
Assignee: Sherwin Williams Co
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Filing: 1970-05-11
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Granted: 1972-06-13
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Expires: 1990-05-11
Abstract
Abstract PHOTOPOLYMERIZABLE NONAIR INHIBITED POLYESTER RESIN COATINGS HAVING A THICKNESS OF 1 TO 12 MILS (0.001 TO 0.012 INCH), PREFERABLY CONTAINING A PHOTOSENSITIZER, ARE CURED BY SUBJECTING THEM TO LIGHT WAVES WITHIN THE RANGE OF 1850 TO 4000 ANGSTROMS. THE PROCESS IS USEFUL IN FORMING COATINGS ON METAL, WOOD OR OTHER SUBSTRATE BUT IS ESPECIALLY VALUABLE FOR PRODUCING CURED RESINOUS COATINGS ON WOOD, E.G., PLYWOOD PANEL.
Inventors
- 👤 Alex C Keyl
- 👤 Mary G Brodie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:13
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/46; B; B05; B05D; B05D3/00; B05D3/06; B05D3/061; B05D3/065; B05D3/067; B05D7/00; B05D7/06; C08F283/00; C08F283/01
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) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |