Patent US2521554A successfully refreshed from Google Patents.
US2521554A
Expired / Lapsed
US
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Method of making paper-covered veneer
Assignee: Chicago Mill and Lumber Co
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Filing: 1947-07-16
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Granted: 1950-09-05
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Expires: 1967-07-16
Abstract
No abstract record available.
Inventors
- 👤 Jr Richard N Ware
- 👤 Cannon Reginald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:56
CPC Classifications
B; B27; B27D; B27D1/00; Y; Y10; Y10T; Y10T156/00; Y10T156/17; Y10T156/1702; Y10T156/1712; Y10T156/1722; Y10T156/1727; Y10T156/1732
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
THE METHOD OF MAKING PAPER COVERED WOOD VENEER WHICH COMPRISES WET STEAMING A WOUND WOOD VENEER ROLL TO HEAT THE WOOD WITHOUT DRYING IT, UNWINDING THE HOT STEAMED VENEER FROM THE WOOD, ADVANCING THE UNWOUND HOT STEAMED VENEER BETWEEN THE ADHESIVE COATED FACE OF TWO SHEETS OF WET STRETCHED KRAFT PAPER, PRESSING THE ADHESIVE COATED FACES OF THE PAPER AGAINST THE HOT STEAMED VENEER AS IT ADVANCES, PASSING THE ADVANCING ASSEMBLY THROUGH A HEATED CHAMBER TO PARTIALLY SET THE ADHESIVE FOR FORMER A NONSLIPPING BOND BETWEEN THE WOOD AND PAPER WITHOUT DRYING THE WOOD TO ITS SHRINKING POINT, AND DRYING THE PAPER COVERED VENEER TO A MOISTURE CONTENT BETWEEN 6% TO 12% WHILE THE ADHESIVE BOND HOLDS THE WOOD IN ITS EXPANDED SWOLLEN WET CONDITION.
Claim 2
Independent Claim
125 words
THE METHOD OF MAKING PAPER COVERED WOOD VENEER WHICH COMPRISES WET STEAMING A WOUND WOOD VENEER ROLL TO HEAT THE WOOD WITHOUT DRYING IT, UNWINDING THE HOT STEAMED VENEER FROM THE WOOD, ADVANCING THE UNWOUND HOT STEAMED VENEER BETWEEN THE ADHESIVE COATED FACE OF TWO SHEETS OF WET STRETCHED KRAFT PAPER, PRESSING THE ADHESIVE COATED FACES OF THE PAPER AGAINST THE HOT STEAMED VENEER AS IT ADVANCES, PASSING THE ADVANCING ASSEMBLY THROUGH A HEATED CHAMBER TO PARTIALLY SET THE ADHESIVE FOR FORMER A NONSLIPPING BOND BETWEEN THE WOOD AND PAPER WITHOUT DRYING THE WOOD TO ITS SHRINKING POINT, AND DRYING THE PAPER COVERED VENEER TO A MOISTURE CONTENT BETWEEN 6% TO 12% WHILE THE ADHESIVE BOND HOLDS THE WOOD IN ITS EXPANDED SWOLLEN WET CONDITION.
References Cited (Backward Citations)
US942852A
Cited
US1369743A
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US1714859A
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US1805179A
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US2095389A
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US2142932A
Cited
US2331297A
Cited
US2444918A
Cited
US2372617A
Cited
US2442115A
Cited
US2425660A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-04 | 1954-03-06 | 1954-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-04 | 1958-03-06 | 1958-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-04 | 1962-03-06 | 1962-09-05 | $7700.00 | Window Closed / Lapsed |