US2895866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated structures, compositions for producing same and processes of employing such compositions
Assignee: GAF Chemicals Corp
•
Filing: 1956-05-22
•
Granted: 1959-07-21
•
Expires: 1976-05-22
Abstract
No abstract record available.
Inventors
- 👤 Jr William F Amon
- 👤 Claudi-Magnussen Finn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:19
CPC Classifications
B; B32; B32B; B32B27/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31645; Y10T428/31649; Y10T428/31678; Y10T428/31692; Y10T428/31699; Y10T428/31855; Y10T428/31935
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A PROCESS OF LAMINATING COMPRISING APPLYING A SOLUTION OF A COPLYMER OF A VINYL LOWER ALKYL ETHER AND MALEIC ANHYDRIDE IN N,N-DIMETHYL FORMAMIDE TO A POLYMETHYL A-CHLORACRYLATE BASE, DRYING THE COATING, EXPOSING THE TREATED BASE TO AMMONIA VAPORS, APPLYING TO THE COATED SIDE OF SAID COATED BASE A PRE-FORMED SHEET AND LAMINATING THE RESULTING ASSEMBLY UNDER HEAT AND PRESSURE.
Claim 2
Dependent Claim
59 words
A PROCESS OF LAMINATING COMPRISING APPLYING A SOLUTION OF A COPLYMER OF A VINYL LOWER ALKYL ETHER AND MALEIC ANHYDRIDE IN N,N-DIMETHYL FORMAMIDE TO A POLYMETHYL A-CHLORACRYLATE BASE, DRYING THE COATING, EXPOSING THE TREATED BASE TO AMMONIA VAPORS, APPLYING TO THE COATED SIDE OF SAID COATED BASE A PRE-FORMED SHEET AND LAMINATING THE RESULTING ASSEMBLY UNDER HEAT AND PRESSURE.
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US2213763A
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Cited
US2825672A
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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) | 1962-07-20 | 1963-01-19 | 1963-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-20 | 1967-01-19 | 1967-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-20 | 1971-01-19 | 1971-07-21 | $7700.00 | Window Closed / Lapsed |