US2744047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of preparing decorative laminates
Assignee: Masonite Corp
•
Filing: 1952-06-02
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Granted: 1956-05-01
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Expires: 1972-06-02
Abstract
No abstract record available.
Inventors
- 👤 Angelo P Ingrassia
- 👤 Edward T Ruffin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:32
CPC Classifications
D; D21; D21H; D21H27/00; D21H27/18; D21H27/22; D21H27/24; B; B32; B32B; B32B27/00; C; C08; C08L; C08L97/00; C08L97/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
PROCESS OF PREPARING A DENSE FIBROUS LIGNOCELLULOSE SHEET COMPRISING FORMING HYDROLYZED LINGOCELLULOSE FIBERS INTO A POROUS SHEET HAVING A DENSITY OF ABOUT 0.4 TO ABOUT 0.8 AND A MOISTURE CONTENT OF SUBSTANTIALLY ZONE APPLYING TO THE SURFACES OF THE DRY SHEET A SUFFICIENT AMOUNT OF AN AQUEOUS RESIN MIXTURE TO PROVIDE FROM ABOUT 2% TO ABOUT 8% OF MOISTURE ON AND IN THE SHEET, SAID RESIN MIXTURE COMPRISING FROM ABOUT 90% WATER AND 10% RESIN TO ABOUT 30% WATER AND 70% RESIN, SUBJECTING THE SHEET TO HEAT AND PRESSURE SUFFICIENT TO OBTAIN A FINAL DENSITY WITHIN THE RANGE OF FROM ABOUT 1.2 TO ABOUT 1,42 IN THE PRESSED SHEET AND TO CURE THE RESIN TO INSOLUBLE STATE, SAID PRESSING TEMPERATURE BEING IN EXCESS OF 100* C., AND THEN COOLING THE COMPRESSED SHEET WHILE UNDER PRESSURE TO A TEMPERATURE BELOW ABOUT 100* C.
Claim 2
Dependent Claim
142 words
PROCESS OF PREPARING A DENSE FIBROUS LIGNOCELLULOSE SHEET COMPRISING FORMING HYDROLYZED LINGOCELLULOSE FIBERS INTO A POROUS SHEET HAVING A DENSITY OF ABOUT 0.4 TO ABOUT 0.8 AND A MOISTURE CONTENT OF SUBSTANTIALLY ZONE APPLYING TO THE SURFACES OF THE DRY SHEET A SUFFICIENT AMOUNT OF AN AQUEOUS RESIN MIXTURE TO PROVIDE FROM ABOUT 2% TO ABOUT 8% OF MOISTURE ON AND IN THE SHEET, SAID RESIN MIXTURE COMPRISING FROM ABOUT 90% WATER AND 10% RESIN TO ABOUT 30% WATER AND 70% RESIN, SUBJECTING THE SHEET TO HEAT AND PRESSURE SUFFICIENT TO OBTAIN A FINAL DENSITY WITHIN THE RANGE OF FROM ABOUT 1.2 TO ABOUT 1,42 IN THE PRESSED SHEET AND TO CURE THE RESIN TO INSOLUBLE STATE, SAID PRESSING TEMPERATURE BEING IN EXCESS OF 100* C., AND THEN COOLING THE COMPRESSED SHEET WHILE UNDER PRESSURE TO A TEMPERATURE BELOW ABOUT 100* C.
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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) | 1959-05-01 | 1959-10-31 | 1960-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-01 | 1963-10-31 | 1964-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-01 | 1967-10-31 | 1968-05-01 | $7700.00 | Window Closed / Lapsed |