US2941917A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated polymer sheets
Assignee: GAF Chemicals Corp
•
Filing: 1954-03-26
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Granted: 1960-06-21
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Expires: 1974-03-26
Abstract
No abstract record available.
Inventors
- 👤 Harry D Anspon
- 👤 Frank E Pschorr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:07
CPC Classifications
B; B32; B32B; B32B27/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31928
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
A PROCESS FOR MAKING A LAMINATED POLYMER SHEET, WHICH COMPRISES POLYMERIZING A LAYER OF A LIQUID ESTER OF THE CLASS CONSISTING OF ALKYL ESTERS OF ACRYLIC AND OF A-METHACRYLIC ACIDS IN CONTACT WITH A PERFORMED SHEET OF POLYMETHYL A-CHLOROACRYLATE.
Claim 2
Dependent Claim
39 words
A PROCESS FOR MAKING A LAMINATED POLYMER SHEET, WHICH COMPRISES POLYMERIZING A LAYER OF A LIQUID ESTER OF THE CLASS CONSISTING OF ALKYL ESTERS OF ACRYLIC AND OF A-METHACRYLIC ACIDS IN CONTACT WITH A PERFORMED SHEET OF POLYMETHYL A-CHLOROACRYLATE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |