US3341594A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1-(3, 5-dihydroxy-phenyl)-1-hydroxy-2-isopropylamino-ethane and salts thereof
Assignee: C.H. Boehringer Sohn AG and Co KG
•
Filing: 1964-02-03
•
Granted: 1967-09-12
•
Expires: 1984-02-03
Abstract
No abstract record available.
Inventors
- 👤 Otto Thomae
- 👤 Karl Zeile
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:37
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/12; C07D303/18; C07D303/20; C07D303/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF 1-(2,5-DIHYDROXYPHENYL)-1-HYDROXY-2-ISOPROPYLAMINOETHANE AND ITS NON-TOXIC, PHARMACOLOGICALLY ACCEPTABLE ACID ADDITION SALTS.
Claim 2
Dependent Claim
17 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF 1-(2,5-DIHYDROXYPHENYL)-1-HYDROXY-2-ISOPROPYLAMINOETHANE AND ITS NON-TOXIC, PHARMACOLOGICALLY ACCEPTABLE ACID ADDITION SALTS.
References Cited (Backward Citations)
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Cited
US2725399A
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US2765307A
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US2766286A
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US2937118A
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US2820739A
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US3048633A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |