Patent US2853419A successfully refreshed from Google Patents.
US2853419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous fat emulsions and process for preparing the same
Assignee: Merck and Co Inc
•
Filing: 1956-09-07
•
Granted: 1958-09-23
•
Expires: 1976-09-07
Abstract
No abstract record available.
Inventors
- 👤 Degkwitz Robert Rudolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:21
CPC Classifications
A; A23; A23D; A23D7/00; A23D7/01; A23D7/011; C; C09; C09K; C09K23/00; C09K23/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
IN THE PROCESS OF PREPARING AN AQUEOUS FAT EMULSION WHICH IS STABLE TO AUTOCOLAVING AN D ADAPTED FOR INTRAVENOUS INJECTION, AND WHICH COMPRISES A VEGETABLE OIL AND LECITHIN AS AN EMULSFYING AGENT IN AN AQUEOUS MEDIUM, THE IMPROVEMENT THAT COMPRISES EFFECTING EMULSIFICATION IN THE PRESENCE OF A READILY VOLATILE ORGANIC LIQUID, WHICH IS SOLVENT FOR BOTH THE VEGETABLE OIL AND LECITHIN AND WHICH CONSISTS OF A MEIXTURE OF A WATER MISCIBLE ORGANIC SOLVENT AND A WATER IMMISCIBLE ORGANIC SOLVENT, AND REMOVING THE ORGANIC LIQUID FROM THE RESULTING EMULISON.
Claim 2
Dependent Claim
88 words
IN THE PROCESS OF PREPARING AN AQUEOUS FAT EMULSION WHICH IS STABLE TO AUTOCOLAVING AN D ADAPTED FOR INTRAVENOUS INJECTION, AND WHICH COMPRISES A VEGETABLE OIL AND LECITHIN AS AN EMULSFYING AGENT IN AN AQUEOUS MEDIUM, THE IMPROVEMENT THAT COMPRISES EFFECTING EMULSIFICATION IN THE PRESENCE OF A READILY VOLATILE ORGANIC LIQUID, WHICH IS SOLVENT FOR BOTH THE VEGETABLE OIL AND LECITHIN AND WHICH CONSISTS OF A MEIXTURE OF A WATER MISCIBLE ORGANIC SOLVENT AND A WATER IMMISCIBLE ORGANIC SOLVENT, AND REMOVING THE ORGANIC LIQUID FROM THE RESULTING EMULISON.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-22 | 1962-03-24 | 1962-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-22 | 1966-03-24 | 1966-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-22 | 1970-03-24 | 1970-09-23 | $7700.00 | Window Closed / Lapsed |