US3256133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel polyester laminates
Assignee: PPG Industries Inc
•
Filing: 1963-08-14
•
Granted: 1966-06-14
•
Expires: 1983-08-14
Abstract
No abstract record available.
Inventors
- 👤 Francis M Wright
- 👤 Earl E Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:34
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/02; B05D7/50; B05D7/52; B05D7/54; B32; B32B; B32B27/00; B05D2503/00; B05D2508/00; Y; Y10; Y10T; Y10T428/00; Y10T428/23; Y10T428/239; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/249991; Y10T428/26; Y10T428/269; Y10T428/31504; Y10T428/31551; Y10T428/31565; Y10T428/31573; Y10T428/31576; Y10T428/31587; Y10T428/31786; Y10T428/31794
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A LAMINATE COMPRISING (1) A SUBSTRATE OF A CELLULAR RESINOUS POLYMER OF STYRENE, (2) A POLYURETHANE COATING ADHERENT UPON THE POLYMERIC STYRENE SUBSTRATE, AND (3) AN UNSATURATED POLYESTER RESIN CONTAINING FROM ABOUT 15 PERCENT BY WEIGHT TO ABOUT 25 PERCENT BY WEIGHT OF A CH2=C< MONOMER SELECTED FROM THE CLASS CONSISTING OF STYRENE, METHYL METHACRYLATE, AND MIXTURES OF STYRENE AND METHYL METHACRYLATE, ADHERENT UPON THE POLYURETHANE COATING.
Claim 2
Dependent Claim
67 words
A LAMINATE COMPRISING (1) A SUBSTRATE OF A CELLULAR RESINOUS POLYMER OF STYRENE, (2) A POLYURETHANE COATING ADHERENT UPON THE POLYMERIC STYRENE SUBSTRATE, AND (3) AN UNSATURATED POLYESTER RESIN CONTAINING FROM ABOUT 15 PERCENT BY WEIGHT TO ABOUT 25 PERCENT BY WEIGHT OF A CH2=C< MONOMER SELECTED FROM THE CLASS CONSISTING OF STYRENE, METHYL METHACRYLATE, AND MIXTURES OF STYRENE AND METHYL METHACRYLATE, ADHERENT UPON THE POLYURETHANE COATING.
References Cited (Backward Citations)
US2639252A
Cited
US2650212A
Cited
US2865800A
Cited
US2953489A
Cited
US2908602A
Cited
US2994674A
Cited
US3029172A
Cited
US3158529A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |