US3766165A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polysaccharides and their preparation
Assignee: Pfizer Inc
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Filing: 1972-05-25
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Granted: 1973-10-16
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Expires: 1992-05-25
Abstract
Abstract NON-NUTRITIVE CARBOHYDRATE SUBSTITUTES ARE PREPARED BY POLYCONDENSATION OF SACCHARIDES IN THE PRESENCE OF POLYCARBOXYLIC ACID CATALYST AT REDUCED PRESSURE.
Inventors
- 👤 H Rennhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:09
CPC Classifications
A; A23; A23G; A23G4/00; A23G4/06; A23G4/10; A23C; A23C9/00; A23C9/152; A23C9/154; A23C9/1544; A23G1/00; A23G1/30; A23G1/305; A23G3/00; A23G3/34; A23G3/343; A23G3/346; A23G3/36; A23G3/42; A23G9/00; A23G9/32; A23G9/34; A23G9/44; A23G9/46; A23G9/52; A23L; A23L27/00; A23L27/30; A23L27/33; A23L27/60; A23L33/00; A23L33/20; A23L33/21; A23L33/25; A23L33/26; A23L9/00; A23L9/20; A23L9/22; C; C08; C08B; C08B37/00; C08B37/0006; C08B37/0009; A23G2200/00; A23G2200/06
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) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |