Patent US3222358A successfully refreshed from Google Patents.
US3222358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cyanoethylated hydroxyalkylsucrose and its preparation
Assignee: Eastman Kodak Co
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Filing: 1962-12-06
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Granted: 1965-12-07
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Expires: 1982-12-06
Abstract
No abstract record available.
Inventors
- 👤 George P Touey
- 👤 Herman E Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:58
CPC Classifications
C; C07; C07H; C07H15/00; C07H15/02; C07H15/04; C07H15/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
CYANOETHYL HYDROXY (LOWER) ALKYL SUCROSE IN WHICH 3-8 OF THE SUCROSE HYDROXYLS HAVE BEEN REPLACED BY HYDROXY (LOWER) ALKYL AND WHEREIN SUBSTANTIALLY ALL OF THE HYDROXYLS OF THE SAID HYDROXY (LOWER ALKYLATED SUCROSE HAVE BEEN REPLACED BY CYANOETHYL.
Claim 2
Dependent Claim
38 words
CYANOETHYL HYDROXY (LOWER) ALKYL SUCROSE IN WHICH 3-8 OF THE SUCROSE HYDROXYLS HAVE BEEN REPLACED BY HYDROXY (LOWER) ALKYL AND WHEREIN SUBSTANTIALLY ALL OF THE HYDROXYLS OF THE SAID HYDROXY (LOWER ALKYLATED SUCROSE HAVE BEEN REPLACED BY CYANOETHYL.
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) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |