US3432545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
3-aryloxy-1-amino-2-propanols and salts thereof
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1964-08-18
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Granted: 1969-03-11
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Expires: 1984-08-18
Abstract
No abstract record available.
Inventors
- 👤 Ralph Howe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:53
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/13; A61K31/135
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
A LAEVOROTATORY PROPANOLAMINE DERIVATIVE SELECTED FROM THE GROUP CONSISTING OF LAEVOROTATORY COMPOUNDS OF THE FORMULA:
Claim 2
Dependent Claim
15 words
A LAEVOROTATORY PROPANOLAMINE DERIVATIVE SELECTED FROM THE GROUP CONSISTING OF LAEVOROTATORY COMPOUNDS OF THE FORMULA:
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) | 1972-03-10 | 1972-09-09 | 1973-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-10 | 1976-09-09 | 1977-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-10 | 1980-09-09 | 1981-03-11 | $7700.00 | Window Closed / Lapsed |