US3672954A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing deprotenized blood extracts having a healing action and product obtained thereby
Assignee: INST NAZIONALE CHIMICO BIOLOG
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Filing: 1969-08-20
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Granted: 1972-06-27
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Expires: 1989-08-20
Abstract
Abstract A PROCESS FOR PREPARING DEPROTEINIZED BLOOD EXTRACTS HAVING A HEALING ACTION WHICH COMPRISES THE SEQUENTIAL STEPS OF SUBJECTING, AFTER FILTRATION, HEMOLYZED AND DEFIBRINATED BLOOD OF ANIMALS JUST SLAUGHTERED, TO ENZYMATIC HYDROLYSIS, DEPROTEINIZING THE HYDROLYSATE OBTAINED BY HEATING FOLLOWED BY AN IMMEDIATE COOLING AND THEN FILTERING, AND AFTER CONCENTRATION OR IYOLPHILIZATION OF THE FILTRATE, DEPROTEINIZING FURTHER THE PRODUCT WITH ALCOHOL, REMOVING THE LIPIDS THEREFROM IN AN ORGANIC SOLVENT, PURIFYING, REMOVING HISTAMINE THEREFROM AND DRYING UNDER VACUUM THE EXTRACT OBTAINED.
Inventors
- 👤 Leonida Grippa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:36
CPC Classifications
A; A61; A61K; A61K35/00; A61K35/12; A61K35/14; A23; A23J; A23J1/00; A23J1/06; A61K38/00; A61K38/01; A61K38/012; A61K38/017; Y; Y10; Y10S; Y10S530/00; Y10S530/827; Y10S530/829
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |