US3158606A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of recovering saponing and sapogenins from fermented plant juice
Assignee: C.H. Boehringer Sohn AG and Co KG
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Filing: 1962-11-19
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Granted: 1964-11-24
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Expires: 1982-11-19
Abstract
No abstract record available.
Inventors
- 👤 Wenzler Ernst
- 👤 Zeile Karl
- 👤 Hauptmann Karl Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:11
CPC Classifications
C; C07; C07J; C07J71/00; C07J75/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
IN A PROCESSS FOR RECOVERING HECOGENIN FROM AN AQUEOUS SLURRY OBTAINED BY AUTOLYSIS OF HECONIN-CONTAINING SISSAL AGAVE SAP, SAID SLURRY CONSISTING ESSENTIALLY OF INSOLUBLE SOLIDS AND AN AQUEOUS LIQUID, WHICH COMPRISES THE STEPS OF SEPARATING THE INSOLUBLE SOLIDS FROM THE AQUEOUS LIQUID, DRYING THE SEPARATED SOLIDS SUBJECTING THE DRIED SOLIDS TO ACID HYDROLYSIS AND EXTRACTING HECONGENIN FROM THE HYDROLYZED PRODUCT, THE IMPROVEMENT WHICH COMPRISES EFFECTING THE SEPARATION OF THE INSOLUBLE SOLIDS IN THE AQUEOUS SLURRY FROM THE AQUEOUS LIQUID BY FLOATATION, SAID FLOTATION CONSISTING ESSENTIALLY OF PASSING A STREAM OF AIR UPWARDLY THROUGH THE AQUEOUS SLURRY, WHEREBY THE INSOLUBLE SOLIDS ARE CAUSED TO FLOAT ON THE SURFACE OF THE AQUEOUS LIQUID, AND REMOVING THE AQUEOUS LIQUID FROM BELOW THE FLOATING INSOLUBLE SOLIDS, PRIOR TO DRYING THE SEPARATED SOLIDS.
Claim 2
Dependent Claim
128 words
IN A PROCESSS FOR RECOVERING HECOGENIN FROM AN AQUEOUS SLURRY OBTAINED BY AUTOLYSIS OF HECONIN-CONTAINING SISSAL AGAVE SAP, SAID SLURRY CONSISTING ESSENTIALLY OF INSOLUBLE SOLIDS AND AN AQUEOUS LIQUID, WHICH COMPRISES THE STEPS OF SEPARATING THE INSOLUBLE SOLIDS FROM THE AQUEOUS LIQUID, DRYING THE SEPARATED SOLIDS SUBJECTING THE DRIED SOLIDS TO ACID HYDROLYSIS AND EXTRACTING HECONGENIN FROM THE HYDROLYZED PRODUCT, THE IMPROVEMENT WHICH COMPRISES EFFECTING THE SEPARATION OF THE INSOLUBLE SOLIDS IN THE AQUEOUS SLURRY FROM THE AQUEOUS LIQUID BY FLOATATION, SAID FLOTATION CONSISTING ESSENTIALLY OF PASSING A STREAM OF AIR UPWARDLY THROUGH THE AQUEOUS SLURRY, WHEREBY THE INSOLUBLE SOLIDS ARE CAUSED TO FLOAT ON THE SURFACE OF THE AQUEOUS LIQUID, AND REMOVING THE AQUEOUS LIQUID FROM BELOW THE FLOATING INSOLUBLE SOLIDS, PRIOR TO DRYING THE SEPARATED SOLIDS.
References Cited (Backward Citations)
US2989525A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-24 | 1968-05-25 | 1968-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-24 | 1972-05-25 | 1972-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-24 | 1976-05-25 | 1976-11-24 | $7700.00 | Window Closed / Lapsed |