US3345248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multilayer decorative laminates with a top sheet comprising a methyl methacrylate polymer
Assignee: Wyeth Holdings LLC
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Filing: 1962-01-22
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Granted: 1967-10-03
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Expires: 1982-01-22
Abstract
No abstract record available.
Inventors
- 👤 Lewis C Pounds
- 👤 Douglas F Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:20
CPC Classifications
B; B32; B32B; B32B27/00; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31859; Y10T428/31862; Y10T428/31866
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A UNITARY, HEAT- AND PRESSURE-CONSOLIDATED DECORATIVE LAMINATED ARTICLE SUITABLE FOR OUTDOOR USE WHICH COMPRISES A SUPERIMPOSED ASSEMBLY OF: (1) A RIGIDITY-IMPARTING BASE MEMBER COMPRISING A PLURALITY OF FIBROUS SHEETS IMPREGNATED WITH A SUBSTANTIALLY COMPLETELY CURED PHENOLIC RESIN, (2) A DECORATIVE SHEET MEMBER DIRECTLY BONDED TO SAID BASE MEMBER COMPRISING A FIBROUS SHEET IMPREGNATED WITH A SUBSTANTIALLY COMPLETELY CURED AMINOTRIAZINEALDEHYDE RESIN, AND (3) A SUBSTANTIALLY NON-POROUS SHEET, OF FROM ABOUT 5 MILS TO ABOUT 30 MILS IN THICKNESS, OF A POLYMER OF METHYL METHACRYLATE HAVING A MOLECULAR WEIGHT OF FROM ABOUT 60,000 TO ABOUT 250,000 SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS OF METHYL METHACRYLATE AND COPOLYMERS OF METHYL METHACRYLATE WITH UP TO ABOUT 30% BY WEIGHT BASED ON THE TOTAL WEIGHT OF THE COPOLYMER OF A DIFFERENT ETHYLENCIALLY UNSATURATED MONOMER COPOLYMERIZABLE THEREWITH DIRECTLY BONDED TO SAID DECORATIVE SHEET MEMBER.
Claim 2
Dependent Claim
139 words
A UNITARY, HEAT- AND PRESSURE-CONSOLIDATED DECORATIVE LAMINATED ARTICLE SUITABLE FOR OUTDOOR USE WHICH COMPRISES A SUPERIMPOSED ASSEMBLY OF: (1) A RIGIDITY-IMPARTING BASE MEMBER COMPRISING A PLURALITY OF FIBROUS SHEETS IMPREGNATED WITH A SUBSTANTIALLY COMPLETELY CURED PHENOLIC RESIN, (2) A DECORATIVE SHEET MEMBER DIRECTLY BONDED TO SAID BASE MEMBER COMPRISING A FIBROUS SHEET IMPREGNATED WITH A SUBSTANTIALLY COMPLETELY CURED AMINOTRIAZINEALDEHYDE RESIN, AND (3) A SUBSTANTIALLY NON-POROUS SHEET, OF FROM ABOUT 5 MILS TO ABOUT 30 MILS IN THICKNESS, OF A POLYMER OF METHYL METHACRYLATE HAVING A MOLECULAR WEIGHT OF FROM ABOUT 60,000 TO ABOUT 250,000 SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS OF METHYL METHACRYLATE AND COPOLYMERS OF METHYL METHACRYLATE WITH UP TO ABOUT 30% BY WEIGHT BASED ON THE TOTAL WEIGHT OF THE COPOLYMER OF A DIFFERENT ETHYLENCIALLY UNSATURATED MONOMER COPOLYMERIZABLE THEREWITH DIRECTLY BONDED TO SAID DECORATIVE SHEET MEMBER.
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) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |