US3034946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated and laminated products, compositions for producing same, and processes of employing such compositions
Assignee: GAF Chemicals Corp
•
Filing: 1955-10-24
•
Granted: 1962-05-15
•
Expires: 1975-10-24
Abstract
No abstract record available.
Inventors
- 👤 Claudi-Magnussen Finn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:53
CPC Classifications
B; B32; B32B; B32B27/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
53 words
A PROCESS FOR PREPARING A HARD SURFACED POLYMETHYL METHACRYLATE COMPOSITE STRUCTURE WHICH COMPRISES APPLYING A SOLUTION COMPRISING FROM 1 TO 10 PARTS OF POLYMETHYL A-CHLOROACRYLATE IN ABOUT 100 PARTS OF A SOLVENT SELECTED FROM THE GROUP CONSISTING OF N,N-DIMETHYLFORMAMIDE, 2-PROPYN-L-OL AND ESTERS THEREOF, TO A POLYMETHYL METHACRYLATE BASE, DRYING SAID SOLUTION AT A
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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) | 1965-05-14 | 1965-11-13 | 1966-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-14 | 1969-11-13 | 1970-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-14 | 1973-11-13 | 1974-05-15 | $7700.00 | Window Closed / Lapsed |