Patent US4511488A successfully refreshed from Google Patents.
Patent US3205111A successfully refreshed from Google Patents.
US3205111A
Expired / Lapsed
US
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Method of producing veneer
Assignee: Hardwood Centre Inc
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Filing: 1961-02-08
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Granted: 1965-09-07
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Expires: 1981-02-08
Abstract
No abstract record available.
Inventors
- 👤 John S Williamson
- 👤 Richard B Williamson
- 👤 Jr John S Williamson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:12
CPC Classifications
B; B27; B27L; B27L5/00; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T83/00; Y10T83/04; Y10T83/0405; Y10T83/041
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
THE METHOD OF PRODUCING WOOD VENEER WHICH INCLUDES THE STEPS OF APPLYING A WATER CONTAINING ADHESIVE TO THE FACE OF ADJACENT WOODEN LAYERS EACH OF SAID WOODEN LAYERS CONTAINING LESS THAN 15 PERCENT OF RESIDUAL MOISTURE CONTENT BY WEIGHT, STACKING SAID LAYERS IN SUPRPOSED RELATION TO FORM AN ASSEMBLED UNIT, SUBJECTING SAID UNIT TO AN EXTERNAL PRESSURE RANGING FROM 100 TO 175 LBS. PER SQUARE INCH, ELEVATING THE TEMPERATURE OF SAID UNIT TO BETWEEN 165* AND 200*F., AND SEVERING SAID UNIT AT SAID ELEVATED TEMPERATURE TRANSVERSE TO THE FACE OF THE LAYERS OF SAID UNIT TO FORM SEPARATE VENEER SHEETS.
Claim 2
Independent Claim
100 words
THE METHOD OF PRODUCING WOOD VENEER WHICH INCLUDES THE STEPS OF APPLYING A WATER CONTAINING ADHESIVE TO THE FACE OF ADJACENT WOODEN LAYERS EACH OF SAID WOODEN LAYERS CONTAINING LESS THAN 15 PERCENT OF RESIDUAL MOISTURE CONTENT BY WEIGHT, STACKING SAID LAYERS IN SUPRPOSED RELATION TO FORM AN ASSEMBLED UNIT, SUBJECTING SAID UNIT TO AN EXTERNAL PRESSURE RANGING FROM 100 TO 175 LBS. PER SQUARE INCH, ELEVATING THE TEMPERATURE OF SAID UNIT TO BETWEEN 165* AND 200*F., AND SEVERING SAID UNIT AT SAID ELEVATED TEMPERATURE TRANSVERSE TO THE FACE OF THE LAYERS OF SAID UNIT TO FORM SEPARATE VENEER SHEETS.
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) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |