Patent US2384946A successfully refreshed from Google Patents.
US2631960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of surfacing wood and similar materials with copolymerizable mixtures
Assignee: Wyeth Holdings LLC
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Filing: 1951-03-21
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Granted: 1953-03-17
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Expires: 1971-03-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Edwin H Dafter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:47
CPC Classifications
B; B32; B32B; B32B27/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31786; Y10T428/3179
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A METHOD OF SURFACING ARTICLES WHICH COMPRISES FORMING AN ASSEMBLY COMPRISING (1) ARTICLE, (2) A LAYER OF AN ADHESIVE, (3) A SHEET OF FIBROUS MATERIAL BEARING A COATING OF A SOLID, CURED, INFUSIBLE COPOLYMER, SAID COPOLYMER HAVING BEEN PREPARED BY THE COPOLYMERIZATION OF A COPOLYMERIZABLE MIXTURE CONTAINING AN UNSATURATED ALKYD RESIN AND A MATERIAL, SAID MATERIAL HAVING A CH2=C< GROUPING AND A BOILING POINT OF AT LEAST 60* C. AND BEING COPOLYMERIZABLE WITH THE ALKYD RESIN AND (4) A LAYER OF SAID COPOLYMERIZABLE MIXTURE IN AN UNCURED STATE, SUPERIMPOSING AN OBJECT HAVING A SMOOTH SURFACE UPON SAID LAYER, (4) AND SUBJECTING THE ASSEMBLY TO HEAT AND PRESSURE WHEREBY THE COPOLYMERIZABLE MIXTURE OF SAID LAYER (4) IS CURED TO A HARD, INFUSIBLE STATE, AND SUBSEQUENTLY REMOVING THE SUPERIMPOSED OBJECT.
Claim 2
Independent Claim
128 words
A METHOD OF SURFACING ARTICLES WHICH COMPRISES FORMING AN ASSEMBLY COMPRISING (1) ARTICLE, (2) A LAYER OF AN ADHESIVE, (3) A SHEET OF FIBROUS MATERIAL BEARING A COATING OF A SOLID, CURED, INFUSIBLE COPOLYMER, SAID COPOLYMER HAVING BEEN PREPARED BY THE COPOLYMERIZATION OF A COPOLYMERIZABLE MIXTURE CONTAINING AN UNSATURATED ALKYD RESIN AND A MATERIAL, SAID MATERIAL HAVING A CH2=C< GROUPING AND A BOILING POINT OF AT LEAST 60* C. AND BEING COPOLYMERIZABLE WITH THE ALKYD RESIN AND (4) A LAYER OF SAID COPOLYMERIZABLE MIXTURE IN AN UNCURED STATE, SUPERIMPOSING AN OBJECT HAVING A SMOOTH SURFACE UPON SAID LAYER, (4) AND SUBJECTING THE ASSEMBLY TO HEAT AND PRESSURE WHEREBY THE COPOLYMERIZABLE MIXTURE OF SAID LAYER (4) IS CURED TO A HARD, INFUSIBLE STATE, AND SUBSEQUENTLY REMOVING THE SUPERIMPOSED OBJECT.
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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) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |