Patent US2772197A successfully refreshed from Google Patents.
US2772197A
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Plywood process
Assignee: Monsanto Chemicals Ltd
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Filing: 1954-07-02
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Granted: 1956-11-27
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Expires: 1974-07-02
Abstract
No abstract record available.
Inventors
- 👤 Stanley E Kozdemba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:58
CPC Classifications
C; C09; C09J; C09J161/00; C09J161/20; C09J161/30; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31942; Y10T428/31949; Y10T428/31957
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A PROCESS FOR PREPARING PLYWOOD FROM A PLURALITY OF VENEERS USING A THERMOSETTING ADHESIVE BASED ON 100 PARTS OF A UREA-FORMALDEHYDE CONSENSATE MODIFIED WITH FROM 5 TO 20% BY WEIGHT BASED ON THE UREA-FORMALDEHYDE CONDENSATE OF A MELAMINE-FORMALDEHYDE CONDENSATE, WHICH COMPRISES SPREADING THE ADHESIVE ON THE VENEERS, ASSEMBLING THE VENEERS, MAINTAINING SAID ASSEMBLED VENEERS AT 20 TO 35* C. WITHOUT PRESSURE FOR FROM 15 TO 24 HOURS AND THEN PRESSING THE ASSEMBLED VENEERS UNDER HEAT AND PRESSURE.
Claim 2
Dependent Claim
77 words
A PROCESS FOR PREPARING PLYWOOD FROM A PLURALITY OF VENEERS USING A THERMOSETTING ADHESIVE BASED ON 100 PARTS OF A UREA-FORMALDEHYDE CONSENSATE MODIFIED WITH FROM 5 TO 20% BY WEIGHT BASED ON THE UREA-FORMALDEHYDE CONDENSATE OF A MELAMINE-FORMALDEHYDE CONDENSATE, WHICH COMPRISES SPREADING THE ADHESIVE ON THE VENEERS, ASSEMBLING THE VENEERS, MAINTAINING SAID ASSEMBLED VENEERS AT 20 TO 35* C. WITHOUT PRESSURE FOR FROM 15 TO 24 HOURS AND THEN PRESSING THE ASSEMBLED VENEERS UNDER HEAT AND PRESSURE.
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) | 1959-11-27 | 1960-05-28 | 1960-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-27 | 1964-05-28 | 1964-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-27 | 1968-05-28 | 1968-11-27 | $7700.00 | Window Closed / Lapsed |