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US2989417A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hardening of gelatin with titanium compounds
Assignee: EIDP Inc
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Filing: 1958-12-24
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Granted: 1961-06-20
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Expires: 1978-12-24
Abstract
No abstract record available.
Inventors
- 👤 Overman Joseph De Witt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:00
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A PROCESS FOR HARDENING GELATIN COMPOSITIONS CONTAINING WATER WHICH COMPRISES ADMIXING THEREWITH ABOUT 1% TO ABOUT 40% BY WEIGHT BASED ON THE GELATIN OF A WATER-SOLUBLE ORGANO-TITANIUM COMPOUND COMPRISING THE REACTION PRODUCT OF ONE MOL OF AN ORTHOTITANATE OF THE FORMULA TI(OR)4 WHEREIN R IS AN ALKYL RADICAL OF 1 TO 8 CARBON ATOMS, WITH 1/2 TO 4 MOLS OF A SATURATED ALIPHATIC CARBOXYLIC ACID OF 2 TO 6 CARBON ATOMS CONTAINING ONLY CARBON, HYDROGEN AND OXYGEN ATOMS AND HAVING A HYDROXYL GROUP IN THE ALPHA-POSITION THEREOF, SAID COMPOUND BEING SOLUBLE IN WATER TO THE EXTENT OF AT LEAST 500 GRAMS PER LITER OF SOLUTION.
Claim 2
Dependent Claim
105 words
A PROCESS FOR HARDENING GELATIN COMPOSITIONS CONTAINING WATER WHICH COMPRISES ADMIXING THEREWITH ABOUT 1% TO ABOUT 40% BY WEIGHT BASED ON THE GELATIN OF A WATER-SOLUBLE ORGANO-TITANIUM COMPOUND COMPRISING THE REACTION PRODUCT OF ONE MOL OF AN ORTHOTITANATE OF THE FORMULA TI(OR)4 WHEREIN R IS AN ALKYL RADICAL OF 1 TO 8 CARBON ATOMS, WITH 1/2 TO 4 MOLS OF A SATURATED ALIPHATIC CARBOXYLIC ACID OF 2 TO 6 CARBON ATOMS CONTAINING ONLY CARBON, HYDROGEN AND OXYGEN ATOMS AND HAVING A HYDROXYL GROUP IN THE ALPHA-POSITION THEREOF, SAID COMPOUND BEING SOLUBLE IN WATER TO THE EXTENT OF AT LEAST 500 GRAMS PER LITER OF SOLUTION.
References Cited (Backward Citations)
GB757190A
Cited
US2870181A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |