Patent US3046195A successfully refreshed from Google Patents.
US3046195A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for deglycyrrhizinating licorice
Assignee: Individual
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Filing: 1957-03-14
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Granted: 1962-07-24
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Expires: 1977-03-14
Abstract
No abstract record available.
Inventors
- 👤 Jr Marinus A Zagt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:59
CPC Classifications
A; A61; A61K; A61K36/00; A61K36/18; A61K36/185; A61K36/48; A61K36/484
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A PROCESS FOR REMOVING GLYCYRRHIZIN AND GLYCYRRHETENIC ACID FROM LICORICE (SUCCUS LIQUIRITIAE), COMPRISING THE STEPS OF DILUTING LICORICE IN WATER AND HEATING THE DILUTED LICORICE TO FORM AN AQUEOUS SOLUTION THEREOF, ACIDIFYING THE SOLUTION WITH SULFURIC ACID AT AN ELEVATED TEMPERATURE TO A PH VALUE OF ABOUT 3.0 TO ABOUT 2.0, STIRRING THE ACIDIFIED SOLUTION, PRECIPITATING THE SYRUPY GLYCYRRHIZIC ACID FORMED AND THE GLYCYRRHETENIC ACID, REMOVING THE PRECIPITATE, NEUTRALIZING THE RESULTING LIQUID FROM WHICH THE PRECIPITATE WAS REMOVED WITH AMMONIA AND CONCENTRATING THE NEUTRALIZED LIQUID.
Claim 2
Dependent Claim
85 words
A PROCESS FOR REMOVING GLYCYRRHIZIN AND GLYCYRRHETENIC ACID FROM LICORICE (SUCCUS LIQUIRITIAE), COMPRISING THE STEPS OF DILUTING LICORICE IN WATER AND HEATING THE DILUTED LICORICE TO FORM AN AQUEOUS SOLUTION THEREOF, ACIDIFYING THE SOLUTION WITH SULFURIC ACID AT AN ELEVATED TEMPERATURE TO A PH VALUE OF ABOUT 3.0 TO ABOUT 2.0, STIRRING THE ACIDIFIED SOLUTION, PRECIPITATING THE SYRUPY GLYCYRRHIZIC ACID FORMED AND THE GLYCYRRHETENIC ACID, REMOVING THE PRECIPITATE, NEUTRALIZING THE RESULTING LIQUID FROM WHICH THE PRECIPITATE WAS REMOVED WITH AMMONIA AND CONCENTRATING THE NEUTRALIZED LIQUID.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-23 | 1966-01-22 | 1966-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-23 | 1970-01-22 | 1970-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-23 | 1974-01-22 | 1974-07-24 | $7700.00 | Window Closed / Lapsed |