US2704269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing solutions of gelatin in polyhydric alcohols
Assignee: GELATIN RES SOC OF AMERICA Inc
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Filing: 1951-06-25
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Granted: 1955-03-15
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Expires: 1971-06-25
Abstract
No abstract record available.
Inventors
- 👤 Linwood F Tice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:29
CPC Classifications
A; A61; A61K; A61K47/00; A61K47/30; A61K47/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
AN IMPROVED METHOD OF PREPARING SOLUTIONS OF GALATIN IN POLYHYDRIC ALCOHOLS COMPRISING MIXING GRANULATED GELATIN WITH A QUANTITY OF PRIMARY LOWER ALIPHATIC MONOHYDRIC ALCOHOL IN THE PROPORTIONOF ABOUT 100 GRAMS OF GELATIN TO ABOUT 60 CC. OF MONOHYDRIC ALCOHOL, ADDING TO THE RESULTING MIXTURE A POLYHYDRIC ALCOHOL, HEATING THE RESULTING MIXTURE AT A TEMPERATURE IN THE RANGE OF 80-100* C. UNTIL A CLEAR, HOMOGENEOUS SOLUTION IS OBTAINED, DISTILLING OFF THE PRIMARY ALPHATIC MONHYDRIC ALCOHOL AND SUBSEQUENTLY COOLING THE RESIDUAL LIQUID UNTIL A SOLID MASS IS OBTAINED, SAID GELATIN BEING PRESENT IN SAID SOLID MASS IN AN AMOUNT IN THE RANGE OF 30-55% BY WEIGHT.
Claim 2
Dependent Claim
104 words
AN IMPROVED METHOD OF PREPARING SOLUTIONS OF GALATIN IN POLYHYDRIC ALCOHOLS COMPRISING MIXING GRANULATED GELATIN WITH A QUANTITY OF PRIMARY LOWER ALIPHATIC MONOHYDRIC ALCOHOL IN THE PROPORTIONOF ABOUT 100 GRAMS OF GELATIN TO ABOUT 60 CC. OF MONOHYDRIC ALCOHOL, ADDING TO THE RESULTING MIXTURE A POLYHYDRIC ALCOHOL, HEATING THE RESULTING MIXTURE AT A TEMPERATURE IN THE RANGE OF 80-100* C. UNTIL A CLEAR, HOMOGENEOUS SOLUTION IS OBTAINED, DISTILLING OFF THE PRIMARY ALPHATIC MONHYDRIC ALCOHOL AND SUBSEQUENTLY COOLING THE RESIDUAL LIQUID UNTIL A SOLID MASS IS OBTAINED, SAID GELATIN BEING PRESENT IN SAID SOLID MASS IN AN AMOUNT IN THE RANGE OF 30-55% BY WEIGHT.
References Cited (Backward Citations)
GB439784A
Cited
US2461478A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-03-14 | 1958-09-13 | 1959-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-03-14 | 1962-09-13 | 1963-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-03-14 | 1966-09-13 | 1967-03-15 | $7700.00 | Window Closed / Lapsed |