Patent US3700451A successfully refreshed from Google Patents.
US3700451A
Expired / Lapsed
US
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Gelable and gelled compositions
Assignee: Northrop Grumman Guidance and Electronics Co Inc
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Filing: 1970-04-06
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Granted: 1972-10-24
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Expires: 1990-04-06
Abstract
Abstract GELABLE OR GELLED COMPOSITIONS ARE DISCLOSED WHICH COMPRISE A LIQUID MEDIUM, AGAR, AND A COMBINATION OF NATURAL GUM GEL-FORMING AGENTS INCLUDING XANTHAN GUM AND LOCUST BEAN GUM. THE GELABLE DISPERSIONS ARE EASILY GELLED BY HEATING TO THE GEL-CRITICAL TEMPERATURE AND SUBSEQUENTILY COOLING THEM BELOW THE SETTING TEMPERATURE. IN THE GELLED STATE, THESE COMPOSITIONS ARE USEFUL AS CARRIERS FOR MANY TYPES OF LIQUIDS INCLUDING PHOTOPROCESSING SOLUTIONS AND THERAPEUTIC SOLUTIONS.
Inventors
- 👤 John P Sullivan Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:49
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/26; G03C5/261
Claims Analysis
Total Claims: 0
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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) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |