Patent US2557948A successfully refreshed from Google Patents.
US2557948A
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Process for the regeneration of bone char
Assignee: Individual
•
Filing: 1949-12-13
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Granted: 1951-06-26
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Expires: 1969-12-13
Abstract
No abstract record available.
Inventors
- 👤 Victor R Deitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:54
CPC Classifications
C; C01; C01B; C01B32/00; C01B32/30; C01B32/354; C01B32/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
THE PROCESS OF REGENERATING BONE CHAR IN CANE SUGAR REFINING, WHICH COMPRISES TREATING THE CHAR WITH A SOLUTION OF AN AMMONIUM SALT OF AN ORGANIC ACID TO REPLACE INORGANIC IONS ADSORBED DURING THE LIQUOR CYCLE WITH VOLATILE IONS, ROASTING THE CHAR AT A TEMPERATURE IN THE RANGE OF 350* TO 440* FAHRENHEITE, AND THEREAFTER RETORTING THE CHAR AT A TEMPERATURE IN THE RANGE OF APPROXIMATELY 960* TO 1020* FAHRENHEIT.
Claim 2
Dependent Claim
69 words
THE PROCESS OF REGENERATING BONE CHAR IN CANE SUGAR REFINING, WHICH COMPRISES TREATING THE CHAR WITH A SOLUTION OF AN AMMONIUM SALT OF AN ORGANIC ACID TO REPLACE INORGANIC IONS ADSORBED DURING THE LIQUOR CYCLE WITH VOLATILE IONS, ROASTING THE CHAR AT A TEMPERATURE IN THE RANGE OF 350* TO 440* FAHRENHEITE, AND THEREAFTER RETORTING THE CHAR AT A TEMPERATURE IN THE RANGE OF APPROXIMATELY 960* TO 1020* FAHRENHEIT.
References Cited (Backward Citations)
US1533031A
Cited
US1843616A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-25 | 1954-12-25 | 1955-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-25 | 1958-12-25 | 1959-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-25 | 1962-12-25 | 1963-06-26 | $7700.00 | Window Closed / Lapsed |