US2658840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of laminates
Assignee: Agrashell Inc
•
Filing: 1950-07-18
•
Granted: 1953-11-10
•
Expires: 1970-07-18
Abstract
No abstract record available.
Inventors
- 👤 Joseph C Perry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:49
CPC Classifications
B; B27; B27G; B27G11/00; C; C09; C09J; C09J161/00; C09J161/04; C09J161/06; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
IN THE STRAIGHT LINE PRODUCTION OF PLYWOOD AND OTHER LAMINATES FROM VENEERS, USING A GLUE SPREADING MACHINE HAVING A GLUE RESERVOIR, SPREADER AND DOCTOR ROOLS, THE PROCESS WHICH COMPRISES MIXING A THERMOSETTING PHENOL-FORMALDEHYDE RESIN GLUE AND WATER WITH A SOLID EXTENDER IN WEIGHT PROPORTIONS OF 1 RESIN SOLIDS TO .5 TO ABOUT 2 OF EXTENDER, COOLING THE RESULTING FUSIBLE GLUE MIX WHILE IN SAID MACHINE AND MAINTAINING ITS TEMPERATURE AT FROM 35* TO 75* F. DURING THE WHOLE PERIOD THE GLUE REMAINS IN SAID MACHINE AND UNTIL IT IS APPLIED TO THE VENEERS WHEREBY HEAT DEVELOPED IN THE GLUE WHILE IN THE MACHINE IS TAKEN UP AND WHEREBY SATISFACTORY SPREADING QUALITIES ARE RETAINED AND SPREADING THE COOLED GLUE ON THE VENEERS.
Claim 2
Dependent Claim
121 words
IN THE STRAIGHT LINE PRODUCTION OF PLYWOOD AND OTHER LAMINATES FROM VENEERS, USING A GLUE SPREADING MACHINE HAVING A GLUE RESERVOIR, SPREADER AND DOCTOR ROOLS, THE PROCESS WHICH COMPRISES MIXING A THERMOSETTING PHENOL-FORMALDEHYDE RESIN GLUE AND WATER WITH A SOLID EXTENDER IN WEIGHT PROPORTIONS OF 1 RESIN SOLIDS TO .5 TO ABOUT 2 OF EXTENDER, COOLING THE RESULTING FUSIBLE GLUE MIX WHILE IN SAID MACHINE AND MAINTAINING ITS TEMPERATURE AT FROM 35* TO 75* F. DURING THE WHOLE PERIOD THE GLUE REMAINS IN SAID MACHINE AND UNTIL IT IS APPLIED TO THE VENEERS WHEREBY HEAT DEVELOPED IN THE GLUE WHILE IN THE MACHINE IS TAKEN UP AND WHEREBY SATISFACTORY SPREADING QUALITIES ARE RETAINED AND SPREADING THE COOLED GLUE ON THE VENEERS.
References Cited (Backward Citations)
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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) | 1956-11-09 | 1957-05-11 | 1957-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-09 | 1961-05-11 | 1961-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-09 | 1965-05-11 | 1965-11-10 | $7700.00 | Window Closed / Lapsed |