Patent US3137607A successfully refreshed from Google Patents.
US3137607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making plywood
Assignee: Beazer East Inc
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Filing: 1960-08-08
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Granted: 1964-06-16
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Expires: 1980-08-08
Abstract
No abstract record available.
Inventors
- 👤 Irving S Goldstein
- 👤 William J Oberley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:45
CPC Classifications
B; B27; B27D; B27D1/00; B27D1/04; Y; Y10; Y10S; Y10S428/00; Y10S428/92
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A PROCESS FOR MAKING PLYWOOD HAVING A REDUCED LOSS IN VOLUME DURING THE APPLICATION OF PRESSURE TO VENEERS WHICH COMPRISES SUBJECTING VENEERS TO A VACUUM AND THEREAFTER, WITHOUT RELEASING THE VACUUM, IMMERSING THE VENEERS IN AN AQUEOUS SOLUTION OF SALT, APLYING A POSITIVE PRESSURE TO THE SALT SOLUTION SO AS TO IMPREGNATE THE VE NEERS WITH SAID SOLUTION SO THAT THE VENEERS WILL RETAIN SALT THEREIN TO THE EXTENT OF 10% OF ITS WEIGHT, REMOVING THE VENEERS FROM THE SOLUTION, APPLYING A VACUUM TO THE VENEERS SO AS TO REMOVE THE MATERIAL NEAR THE SURFACE, DRYING THE VENEERS, APPLYING ADHESIVE TOTHE VENEERS AND ARRANGING THE VENEERS IN AN ASSEMBLY SO AS TO MAKE PLYWOOD THEREFROM, AND APPLYING PRESSURE TO THE ASSEMBLY UNTIL THE ADHESIVE SETS, WHEREBY THE COMPRESSION RESISTANCE OF THE VENEERS IS INCREASED AND THE LOSS IN VOLUME OF THE PLYWOOD DURING THE PRESSING OPERATING IS SUBSTANTIALLY REDUCED.
Claim 2
Dependent Claim
149 words
A PROCESS FOR MAKING PLYWOOD HAVING A REDUCED LOSS IN VOLUME DURING THE APPLICATION OF PRESSURE TO VENEERS WHICH COMPRISES SUBJECTING VENEERS TO A VACUUM AND THEREAFTER, WITHOUT RELEASING THE VACUUM, IMMERSING THE VENEERS IN AN AQUEOUS SOLUTION OF SALT, APLYING A POSITIVE PRESSURE TO THE SALT SOLUTION SO AS TO IMPREGNATE THE VE NEERS WITH SAID SOLUTION SO THAT THE VENEERS WILL RETAIN SALT THEREIN TO THE EXTENT OF 10% OF ITS WEIGHT, REMOVING THE VENEERS FROM THE SOLUTION, APPLYING A VACUUM TO THE VENEERS SO AS TO REMOVE THE MATERIAL NEAR THE SURFACE, DRYING THE VENEERS, APPLYING ADHESIVE TOTHE VENEERS AND ARRANGING THE VENEERS IN AN ASSEMBLY SO AS TO MAKE PLYWOOD THEREFROM, AND APPLYING PRESSURE TO THE ASSEMBLY UNTIL THE ADHESIVE SETS, WHEREBY THE COMPRESSION RESISTANCE OF THE VENEERS IS INCREASED AND THE LOSS IN VOLUME OF THE PLYWOOD DURING THE PRESSING OPERATING IS SUBSTANTIALLY REDUCED.
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) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |