Patent US2991289A successfully refreshed from Google Patents.
US2991289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Derivatives of 1-aminopropane
Assignee: Merck KGaA
•
Filing: 1959-02-02
•
Granted: 1961-07-04
•
Expires: 1979-02-02
Abstract
No abstract record available.
Inventors
- 👤 Schulte Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:34
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/24; C07D213/36; C07D213/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A MEMBER OF THE GROUP CONSISTING OF 1-(6''-ISOBUTYLPYRIDYL -2'') - 1 - (P - BROMOPHENYL) - 3 - MONO - LOWER ALKYL AMINOPROPANE, 1 - (6'' - ISOBUTYLPYRIDYL - 2'') - 1(P-CHLOROPHENYL)-3-MONO-LOWER ALKYL AMINO PROPANE, 1 - (6'' - ISOBUTYLPYRIDYL - 2'') - 1 - (P - BROMOPHENYL)3-DI-LOWER ALKYL AMINO PROPANE, AND 1-(6''-ISOBUTYLPYRIDY1-2'')-1-(P-CHLOROPHENYL)-3-DI-LOWER ALKYL AMINO PROPANE, THE CARBON CONTENT OF THE LOWER ALKYL RADICALS IN THE 3-AMINO GROUP TOTALLING FROM 1 TO 4 CARBON ATOMS.
Claim 2
Dependent Claim
75 words
A MEMBER OF THE GROUP CONSISTING OF 1-(6''-ISOBUTYLPYRIDYL -2'') - 1 - (P - BROMOPHENYL) - 3 - MONO - LOWER ALKYL AMINOPROPANE, 1 - (6'' - ISOBUTYLPYRIDYL - 2'') - 1(P-CHLOROPHENYL)-3-MONO-LOWER ALKYL AMINO PROPANE, 1 - (6'' - ISOBUTYLPYRIDYL - 2'') - 1 - (P - BROMOPHENYL)3-DI-LOWER ALKYL AMINO PROPANE, AND 1-(6''-ISOBUTYLPYRIDY1-2'')-1-(P-CHLOROPHENYL)-3-DI-LOWER ALKYL AMINO PROPANE, THE CARBON CONTENT OF THE LOWER ALKYL RADICALS IN THE 3-AMINO GROUP TOTALLING FROM 1 TO 4 CARBON ATOMS.
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) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |