US3408387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amidoaroxyalkanolamines
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1965-09-17
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Granted: 1968-10-29
•
Expires: 1985-09-17
Abstract
No abstract record available.
Inventors
- 👤 Howe Ralph
- 👤 Smith Leslie Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:59
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/13; A61K31/135; C; C07; C07C; C07C233/00; C07C233/01; C07C233/16; C07C311/00; C07C311/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
AN ALKANOLAMINE DERIVATIVE SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS OF THE FORMULA:
Claim 2
Dependent Claim
13 words
AN ALKANOLAMINE DERIVATIVE SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS OF THE FORMULA:
References Cited (Backward Citations)
GB922600A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |