US3655823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel mixtures of acrylic monomers and polyester resins
Assignee: PPG Industries Inc
•
Filing: 1969-11-06
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Granted: 1972-04-11
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Expires: 1989-11-06
Abstract
Abstract NOVEL MIXTURES OF ACRYLOXYPIVALYL ACRYLOXYPIVALATE AND ANALOGOUS COMPOUNDS WITH POLYESTERS ARE COPOLYMERIZED THE RESULTING COPOLYMER IS A HARD, MAR-RESISTANT, AND RELATIVELY FLEXIBLE MATERIAL.
Inventors
- 👤 Earl E Parker
- 👤 Roger M Christenson
- 👤 Rostyslaw Dowbenko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:29
CPC Classifications
C; C08; C08F; C08F283/00; C08F283/01; C08L; C08L67/00; C08L67/06
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) | 1975-04-11 | 1975-10-11 | 1976-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-11 | 1979-10-11 | 1980-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-11 | 1983-10-11 | 1984-04-11 | $7700.00 | Window Closed / Lapsed |