US2834771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gelatin derivatives and their preparation
Assignee: General Foods Corp
•
Filing: 1956-01-03
•
Granted: 1958-05-13
•
Expires: 1976-01-03
Abstract
No abstract record available.
Inventors
- 👤 William A Mitchell
- 👤 William C Seidel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:08
CPC Classifications
A; A23; A23J; A23J3/00; A23J3/04; A23J3/06
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
27 words
THE METHOD OF PREPARING A GELATIN DERIVATIVE WHICH COMPRISES ADJUSTING A GELATIN SOLUTION TO AN ALKALINE PH BY MEANS OF CALCIUM HYDROXIDE, AND REACTING CARBON DIOXIDE THEREWITH.
Claim 2
Independent Claim
27 words
THE METHOD OF PREPARING A GELATIN DERIVATIVE WHICH COMPRISES ADJUSTING A GELATIN SOLUTION TO AN ALKALINE PH BY MEANS OF CALCIUM HYDROXIDE, AND REACTING CARBON DIOXIDE THEREWITH.
Claim 3
Independent Claim
38 words
THE METHOD OF PREPARING A GELATIN DERIVATIVE WHICH COMPRISES ADJUSTING A GELATIN SOLUTION TO AN ALKALINE PH BY MEANS OF CALCIUM HYDROXIDE, REACTING CARBON DIOXIDE THEREWITH, AND DRYING THE RESULTING SOLUTION WHILE MAINTAINING IT IN THE SOL STATE.
Claim 4
Independent Claim
38 words
THE METHOD OF PREPARING A GELATIN DERIVATIVE WHICH COMPRISES ADJUSTING A GELATIN SOLUTION TO AN ALKALINE PH BY MEANS OF CALCIUM HYDROXIDE, REACTING CARBON DIOXIDE THEREWITH, AND DRYING THE RESULTING SOLUTION WHILE MAINTAINING IT IN THE SOL STATE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-12 | 1961-11-11 | 1962-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-12 | 1965-11-11 | 1966-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-12 | 1969-11-11 | 1970-05-13 | $7700.00 | Window Closed / Lapsed |