Patent US3579465A successfully refreshed from Google Patents.
US3579465A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous gels of polyoxyethylated polyoxypropylene glycol adducts of ethylene diamine
Assignee: Wyandotte Chemicals Corp
•
Filing: 1967-10-16
•
Granted: 1971-05-18
•
Expires: 1987-10-16
Abstract
Abstract AQUEOUS GELS, USEFUL IN THE FORMULATION OF PHARMACEUTICAL, COSMETIC AND DETERGENT COMPOSITIONS, ARE PREPARED FROM CERTAIN POLYOXETHYLATED POLYOXYPROPLENE GLYCOL ADDUCTS OF ETHYLENE DIAMINE.
Inventors
- 👤 Irving R Schmolka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:44
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/02; A61K8/04; A61K8/042; A61K47/00; A61K47/06; A61K47/16; A61K47/18; A61K8/18; A61K8/30; A61K8/40; A61K8/44; A61K8/445; A61K8/72; A61K8/90; A61K9/00; A61K9/0012; A61K9/0014; A61Q; A61Q15/00; A61Q17/00; A61Q17/005; A61Q17/02; A61Q17/04; A61Q5/00; A61Q5/04; A61Q5/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-05-17 | 1974-11-16 | 1975-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-17 | 1978-11-16 | 1979-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-17 | 1982-11-16 | 1983-05-18 | $7700.00 | Window Closed / Lapsed |