US3092619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High molecular carbohydrate ether carboxylic acid esters
Assignee: Henkel AG and Co KGaA
•
Filing: 1955-12-20
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Granted: 1963-06-04
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Expires: 1975-12-20
Abstract
No abstract record available.
Inventors
- 👤 Kohler Rudolf
- 👤 Grun Hans-Hellmut
- 👤 Kosche Horst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:05
CPC Classifications
C; C08; C08B; C08B11/00; C08B11/02; C08B11/04; C08B11/10; C08B11/12; C08B13/00; C08B31/00; C08B37/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
A HIGH MOLECULAR WEIGHT CARBOHYDRATE ETHER CARBOXYLATE CONTAINING AN ESTER GROUP OF A FREE CELLULOSE GLYCOLIC ACID WITH AN EPOXIDE SELECTED FROM THE GROUP CONSISTING OF ETHYLENE OXIDE, PROPYLENE OXIDE, AND GLYCIDE.
Claim 2
Dependent Claim
32 words
A HIGH MOLECULAR WEIGHT CARBOHYDRATE ETHER CARBOXYLATE CONTAINING AN ESTER GROUP OF A FREE CELLULOSE GLYCOLIC ACID WITH AN EPOXIDE SELECTED FROM THE GROUP CONSISTING OF ETHYLENE OXIDE, PROPYLENE OXIDE, AND GLYCIDE.
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) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |