Patent US2581652A successfully refreshed from Google Patents.
US2581652A
Expired / Lapsed
US
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Method of manufacturing sheet wood
Assignee: UNITED STATES SHEETWOOD Co
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Filing: 1948-01-19
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Granted: 1952-01-08
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Expires: 1968-01-19
Abstract
No abstract record available.
Inventors
- 👤 Worth C Goss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:41
CPC Classifications
B; B27; B27N; B27N3/00; B27N1/00; Y; Y10; Y10S; Y10S425/00; Y10S425/812
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A METHOD FOR THE PRODUCTION OF SHEET LUMBER COMPRISING PRODUCING A SEMI-COLLOIDAL BONDING AGENT BY THE WET GRINDING OF WOOD THAT HAS DECAYED TO A CONDITION OF BROWN ROT, PASSING WOOD CHIPS AND SAID BONDING AGENT SIMULTANEOUSLY THROUGH A WOOD FIBERIZING MACHINE TO REDUCE THE CHIPS TO FIBERS AND TO CAUSE THE INDIVIDUAL FIBERS TO BE COATED WITH THE BONDING AGENT, LAYING DOWN THE FIBERS TO FORM A LOOSELY MATTED PAD, THEN COMPRESSING THE PAD AND CAUSING SETTING OF THE BONDING AGENT AND FIBERS BETWEEN THE PLATENS OF A STEAM VENTED PRESS AT A TEMPERATURE OF BETWEEN 250* F. AND 550* F. AND RETAINING THE PRESSURE UNTIL THE BOARD HAS BECOME DRY.
Claim 2
Independent Claim
112 words
A METHOD FOR THE PRODUCTION OF SHEET LUMBER COMPRISING PRODUCING A SEMI-COLLOIDAL BONDING AGENT BY THE WET GRINDING OF WOOD THAT HAS DECAYED TO A CONDITION OF BROWN ROT, PASSING WOOD CHIPS AND SAID BONDING AGENT SIMULTANEOUSLY THROUGH A WOOD FIBERIZING MACHINE TO REDUCE THE CHIPS TO FIBERS AND TO CAUSE THE INDIVIDUAL FIBERS TO BE COATED WITH THE BONDING AGENT, LAYING DOWN THE FIBERS TO FORM A LOOSELY MATTED PAD, THEN COMPRESSING THE PAD AND CAUSING SETTING OF THE BONDING AGENT AND FIBERS BETWEEN THE PLATENS OF A STEAM VENTED PRESS AT A TEMPERATURE OF BETWEEN 250* F. AND 550* F. AND RETAINING THE PRESSURE UNTIL THE BOARD HAS BECOME DRY.
References Cited (Backward Citations)
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GB154574A
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US1569272A
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US1724393A
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US2033411A
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US2080077A
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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) | 1955-01-07 | 1955-07-09 | 1956-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-07 | 1959-07-09 | 1960-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-07 | 1963-07-09 | 1964-01-08 | $7700.00 | Window Closed / Lapsed |