US2546903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of producing activated carbon
Assignee: Individual
•
Filing: 1937-09-02
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Granted: 1951-03-27
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Expires: 1957-09-02
Abstract
No abstract record available.
Inventors
- 👤 Jacque C Morrell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:12
CPC Classifications
C; C01; C01B; C01B32/00; C01B32/30; C01B32/354; C01B32/382; Y; Y10; Y10S; Y10S210/00; Y10S210/902; Y10S210/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A PROCESS FOR THE PRODUCTION OF STRUCTURAL ACTIVATED CARBON SUITABLE FOR ADSORPTIVE AND REFINING PURPOSES WHICH COMPRISES ADDING ZINC CHLORIDE TO A CARBON COMPRISING A VEGETABLE CHAR AND THEREAFTER MIXING THE SAID CARBON COMPRISING A VEGETABLE CHAR WITH MINERAL CARBON OF THE CLASS CONSISTING OF COALS AND COKES AND WITH A BINDER WHICH CHARS ON HEATING, COMPRESSING THE MIXTURE UNDER SUBSTANTIAL PRESSURE,SUBJECTING THE COMPRESSED PRODUCT TO A TEMPERATURE ADEQUATE TO CARBONIZE AND TO CHAR THE BINDER THEREIN, ACTIVATING THE RESULTING PRODUCT BY HEATING IN THE PRESENCE OF A GAS HAVING AN ACTIVATING ACTION AND SUBJECTING THE CHARRED AND THE ACTIVATED PRODUCT TO THE ACTION OF A SOLVENT TO REMOVE UNDERSIRABLE SUBSTANCES.
Claim 2
Dependent Claim
111 words
A PROCESS FOR THE PRODUCTION OF STRUCTURAL ACTIVATED CARBON SUITABLE FOR ADSORPTIVE AND REFINING PURPOSES WHICH COMPRISES ADDING ZINC CHLORIDE TO A CARBON COMPRISING A VEGETABLE CHAR AND THEREAFTER MIXING THE SAID CARBON COMPRISING A VEGETABLE CHAR WITH MINERAL CARBON OF THE CLASS CONSISTING OF COALS AND COKES AND WITH A BINDER WHICH CHARS ON HEATING, COMPRESSING THE MIXTURE UNDER SUBSTANTIAL PRESSURE,SUBJECTING THE COMPRESSED PRODUCT TO A TEMPERATURE ADEQUATE TO CARBONIZE AND TO CHAR THE BINDER THEREIN, ACTIVATING THE RESULTING PRODUCT BY HEATING IN THE PRESENCE OF A GAS HAVING AN ACTIVATING ACTION AND SUBJECTING THE CHARRED AND THE ACTIVATED PRODUCT TO THE ACTION OF A SOLVENT TO REMOVE UNDERSIRABLE SUBSTANCES.
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) | 1954-03-26 | 1954-09-25 | 1955-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-26 | 1958-09-25 | 1959-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-26 | 1962-09-25 | 1963-03-27 | $7700.00 | Window Closed / Lapsed |