Patent US2864715A successfully refreshed from Google Patents.
US2864715A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of making a lignocellulose product and products resulting therefrom
Assignee: Carr Adams and Collier Co
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Filing: 1954-07-15
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Granted: 1958-12-16
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Expires: 1974-07-15
Abstract
No abstract record available.
Inventors
- 👤 William T Glab
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:47
CPC Classifications
C; C08; C08H; C08H8/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
THE METHOD OF MAKING A MOLDABLE AND EXTRUDABLE COMPOSITION IN A SUBSTANTIALLY DRY PROCESS, CONSISTING ESSENTIALLY OF: REACTING FINELY-DIVIDED ESSENTIALLY DRY LIGNOCELLULOSE IN THE ABSENCE OF SUBSTANTIAL AMOUNTS OF ADDED WATER AND FROM ABOUT 0.5-20% OF SULFUR IN THE PRESENCE OF STEAM AT A TEMPERATURE OF ABOUT 300-550*F. IN A CONFINED ATMOSPHERE AT A TEMPERATURE OF FROM ABOUT 300-550*F. AT A GUAGE PRESSURE OF AT LEAST ABOUT 200 POUNDS PER SQUARE INCH FOR FROM ABOUT 4-60 MINUTES, ALL SAID PERCENTAGES BEING BY WEIGHT OF SAID LIGNOCELLULOSE.
Claim 2
Independent Claim
86 words
THE METHOD OF MAKING A MOLDABLE AND EXTRUDABLE COMPOSITION IN A SUBSTANTIALLY DRY PROCESS, CONSISTING ESSENTIALLY OF: REACTING FINELY-DIVIDED ESSENTIALLY DRY LIGNOCELLULOSE IN THE ABSENCE OF SUBSTANTIAL AMOUNTS OF ADDED WATER AND FROM ABOUT 0.5-20% OF SULFUR IN THE PRESENCE OF STEAM AT A TEMPERATURE OF ABOUT 300-550*F. IN A CONFINED ATMOSPHERE AT A TEMPERATURE OF FROM ABOUT 300-550*F. AT A GUAGE PRESSURE OF AT LEAST ABOUT 200 POUNDS PER SQUARE INCH FOR FROM ABOUT 4-60 MINUTES, ALL SAID PERCENTAGES BEING BY WEIGHT OF SAID LIGNOCELLULOSE.
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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) | 1961-12-15 | 1962-06-16 | 1962-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-15 | 1966-06-16 | 1966-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-15 | 1970-06-16 | 1970-12-16 | $7700.00 | Window Closed / Lapsed |