Patent US3154554A successfully refreshed from Google Patents.
US3154554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tertiary amines
Assignee: C.H. Boehringer Sohn AG and Co KG
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Filing: 1960-07-05
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Granted: 1964-10-27
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Expires: 1980-07-05
Abstract
No abstract record available.
Inventors
- 👤 Seeger Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:46
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
2 words
1-(3,4-DIMETHYLPHENYL)-1-PIPERIDINO-ETHANE HYDROCHLORIDE.
Claim 2
Dependent Claim
2 words
1-(3,4-DIMETHYLPHENYL)-1-PIPERIDINO-ETHANE HYDROCHLORIDE.
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) | 1967-10-27 | 1968-04-27 | 1968-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-27 | 1972-04-27 | 1972-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-27 | 1976-04-27 | 1976-10-27 | $7700.00 | Window Closed / Lapsed |