US2744141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing saturated aliphatic beta-secondary- and tertiary-amino alcohols
Assignee: Warner Chilcott Pharmaceuticals Inc
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Filing: 1951-06-26
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Granted: 1956-05-01
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Expires: 1971-06-26
Abstract
No abstract record available.
Inventors
- 👤 Kenyon J Hayes
- 👤 Gordon D Drake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:48
CPC Classifications
C; C07; C07C; C07C215/00; C07C215/02; C07C215/04; C07C215/06; C07C215/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
THE METHOD OF PREPARING A SATURATED ALIPHATIC BETAAMINO ALCOHOL OF THE GENERAL FORMULA:
Claim 2
Independent Claim
13 words
THE METHOD OF PREPARING A SATURATED ALIPHATIC BETAAMINO ALCOHOL OF THE GENERAL 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) | 1959-05-01 | 1959-10-31 | 1960-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-01 | 1963-10-31 | 1964-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-01 | 1967-10-31 | 1968-05-01 | $7700.00 | Window Closed / Lapsed |