US2686752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Enzymatic hydrolysis of steroidal saponins
Assignee: United States Department of Agriculture
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Filing: 1952-10-10
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Granted: 1954-08-17
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Expires: 1972-10-10
Abstract
No abstract record available.
Inventors
- 👤 Monroe E Wall
- 👤 Merle M Krider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:19
CPC Classifications
C; C07; C07J; C07J71/00; C07J75/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
THE PROCESS OF RECOVERING STEROIDAL SAPOGENINS FROM STEROIDAL SAPONINS DERIVED FROM A PLANT MATERIAL OF A PLANT SELECTED FROM THE GROUP CONSISTING OF AN AGAVE, A YUCCA, AND A DIOSCOREA, COMPRISING TREATING A SUBSTANTIALLY AQUEOUS SOLUTION OF THE SAID STEROIDAL SAPONINS WITH AN AQUEOUS EXTRACT OF STEROIDAL SAPONIN-CONTAINING PLANT MATERIAL OF A PLANT SELECTED FROM THE SAME GROUP, SAID EXTRACT CONTAINING AN ENZYME CAPABLE OF HYDROLYZING THE STEROIDAL SAPONINS.
Claim 2
Dependent Claim
69 words
THE PROCESS OF RECOVERING STEROIDAL SAPOGENINS FROM STEROIDAL SAPONINS DERIVED FROM A PLANT MATERIAL OF A PLANT SELECTED FROM THE GROUP CONSISTING OF AN AGAVE, A YUCCA, AND A DIOSCOREA, COMPRISING TREATING A SUBSTANTIALLY AQUEOUS SOLUTION OF THE SAID STEROIDAL SAPONINS WITH AN AQUEOUS EXTRACT OF STEROIDAL SAPONIN-CONTAINING PLANT MATERIAL OF A PLANT SELECTED FROM THE SAME GROUP, SAID EXTRACT CONTAINING AN ENZYME CAPABLE OF HYDROLYZING THE STEROIDAL SAPONINS.
References Cited (Backward Citations)
US2069687A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-16 | 1958-02-15 | 1958-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-16 | 1962-02-15 | 1962-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-16 | 1966-02-15 | 1966-08-17 | $7700.00 | Window Closed / Lapsed |