US3199213A
Expired / Lapsed
US
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Method of changing the moisture content of wood
Assignee: Crown Zellerbach Canada Ltd
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Filing: 1961-07-12
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Granted: 1965-08-10
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Expires: 1981-07-12
Abstract
No abstract record available.
Inventors
- 👤 Frederick H Milligan
- 👤 Charles W Hoyt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:49
CPC Classifications
F; F26; F26B; F26B13/00; F26B13/10; F26B13/101; F26B15/00; F26B15/10; F26B15/12; F26B15/18; F26B21/00; F26B21/30; F26B21/50; F26B21/55; F26B2210/00; F26B2210/14; F26B2210/16
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
83 words
THE METHOD OF CHANGING THE MOISTURE CONTENT OF WOOD OF GENERALLY PLANAR CONFIGURATION WHICH COMPRISES RAISING THE MOISTURE CONTENT OF THE WOOD BY IMPINGING A GAS AT A DRY BULB TEMPERATURE OF FROM 140 TO 212*F. AGAINST A MAJOR PLANAR SURFACE OF THE WOOD TO BE TREATED SUBSTANTIALLY NORMAL THERETO AT A VELOCITY RANGING FROM ABOUT 1000 F.P.M. TO AT LEAST 11000 F.P.M. FOR A TIME SUFFICIENT AND WITH THE RELATIVE, HUMIDITY OF THE GAS ADJUSTED TO ESTABLISH A DESIRED EQUILIBRIUM MOISTURE CONTENT.
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) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |