US2783148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alcoholized chitin, process of preparation and food products containing the same
Assignee: Wyeth LLC
•
Filing: 1952-05-27
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Granted: 1957-02-26
•
Expires: 1972-05-27
Abstract
No abstract record available.
Inventors
- 👤 Gyorgy Paul
- 👤 Kuhn Richard
- 👤 Zilliken Friedrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:16
CPC Classifications
A; A23; A23C; A23C9/00; A23C9/20; A23C9/203; Y; Y10; Y10S; Y10S426/00; Y10S426/801
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
56 words
A COMPOSITION COMPRISING COW''S MILK SOLIDS AND AN ALCOHOLIZED CHITIN PREPARED BY REACTING CHITIN WITH AN ANHYDROUS ALCOHOL SELECTED FROM THE GROUP WHICH CONSISTS OF ANHYDROUS METHANOL, ANHYDROUS ETHANOL AND ANHYDROUS ISOPROPANOL, SAID REACTION BEING CARRIED OUT AT A TEMPERATURE WITHIN THE RANGE OF 0*C. TO ROOM TEMPERATURE IN THE PRESENCE OF ANHYDROUS HYDROGEN CHLORIDE GAS.
References Cited (Backward Citations)
US2040880A
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US2072771A
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US2258171A
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US2442452A
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US2538106A
Cited
US2463885A
Cited
US2590121A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-26 | 1960-08-27 | 1961-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-26 | 1964-08-27 | 1965-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-26 | 1968-08-27 | 1969-02-26 | $7700.00 | Window Closed / Lapsed |