US2706160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
A method of making a molded lignocellulose product
Assignee: Carr Adams and Collier Co
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Filing: 1951-06-16
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Granted: 1955-04-12
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Expires: 1971-06-16
Abstract
No abstract record available.
Inventors
- 👤 William T Glab
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:44
CPC Classifications
C; C08; C08H; C08H8/00; C08L; C08L97/00; C08L97/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
THE METHOD OF MAKING A LIGNOCELLULOSE PRODUCT CONSISTING ESSENTIALLY OF INTIMATELY MIXING PARTICLES OF LIGNOCELLULOSE MATERIALS HAVING A MAXIMUM AVERAGE PARTICLE SIZE OF ABOUT 50 MESH AND A MAXIMUM MOISTURE CONTENT OF ABOUT 30% BY WEIGHT WITH FROM ABOUT 0.5-20% BY WEIGHT OF SULFUR PARTICLES HAVING A MAXIMUM AVERAGE PARTICLE SIZE OF ABOUT 100 MESH, HEATING THE MIXTURE AT FROM ABOUT 400-600* F. FOR A TIME SUFFICIENT TO COMBINE CHEMICALLY A SUBSTANTIAL PORTION OF THE SULFUR WITH THE DIGNOCELLULOSE, VENTING THE FUMES FROM SAID CHEMICAL COMBINING, AND AGAIN HEATING AT A TEMPERATURE OF FROM ABOUT 400-600*F. AT A MOLDING PRESSURE, SAID COMBINED HEATING BEING FOR A TIME SUFFICIENT TO COMBINE CHEMICALLY AT LEAST A MAJOR PORTION OF SAID SULFUR PRESENT IN SAID PRODUCT WITH SAID LIGNOCELLULOSE.
Claim 2
Independent Claim
126 words
THE METHOD OF MAKING A LIGNOCELLULOSE PRODUCT CONSISTING ESSENTIALLY OF INTIMATELY MIXING PARTICLES OF LIGNOCELLULOSE MATERIALS HAVING A MAXIMUM AVERAGE PARTICLE SIZE OF ABOUT 50 MESH AND A MAXIMUM MOISTURE CONTENT OF ABOUT 30% BY WEIGHT WITH FROM ABOUT 0.5-20% BY WEIGHT OF SULFUR PARTICLES HAVING A MAXIMUM AVERAGE PARTICLE SIZE OF ABOUT 100 MESH, HEATING THE MIXTURE AT FROM ABOUT 400-600* F. FOR A TIME SUFFICIENT TO COMBINE CHEMICALLY A SUBSTANTIAL PORTION OF THE SULFUR WITH THE DIGNOCELLULOSE, VENTING THE FUMES FROM SAID CHEMICAL COMBINING, AND AGAIN HEATING AT A TEMPERATURE OF FROM ABOUT 400-600*F. AT A MOLDING PRESSURE, SAID COMBINED HEATING BEING FOR A TIME SUFFICIENT TO COMBINE CHEMICALLY AT LEAST A MAJOR PORTION OF SAID SULFUR PRESENT IN SAID PRODUCT WITH 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) | 1958-04-11 | 1958-10-11 | 1959-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-11 | 1962-10-11 | 1963-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-11 | 1966-10-11 | 1967-04-12 | $7700.00 | Window Closed / Lapsed |