US2671779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbohydrate products and processes therefor
Assignee: Ohio State University Research Foundation
•
Filing: 1948-06-08
•
Granted: 1954-03-09
•
Expires: 1968-06-08
Abstract
No abstract record available.
Inventors
- 👤 Kenneth M Gaver
- 👤 Esther P Lasure
- 👤 Derk V Tieszen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:23
CPC Classifications
C; C08; C08B; C08B37/00; C08B15/00; C08B31/00; C08B31/08; Y; Y10; Y10S; Y10S71/00; Y10S71/903
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
22 words
A SUBSTANTIALLY UNIFORMLY SUBSTITUTED GLUCOPYRANOSE POLYMER CONSISTING OF INTERLINKED AND POLYMERIZED SUBSTANTIALLY UNIFORMLY SUBSTITUTED GLUCOPYRANOSE UNITS EACH HAVING THE FOLLOWING STRUCTURAL FORMULA
Claim 2
Dependent Claim
22 words
A SUBSTANTIALLY UNIFORMLY SUBSTITUTED GLUCOPYRANOSE POLYMER CONSISTING OF INTERLINKED AND POLYMERIZED SUBSTANTIALLY UNIFORMLY SUBSTITUTED GLUCOPYRANOSE UNITS EACH HAVING THE FOLLOWING STRUCTURAL FORMULA
References Cited (Backward Citations)
US2294925A
Cited
US2397732A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-08 | 1957-09-07 | 1958-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-08 | 1961-09-07 | 1962-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-08 | 1965-09-07 | 1966-03-09 | $7700.00 | Window Closed / Lapsed |