Patent US3188349A successfully refreshed from Google Patents.
US3188349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-secondary-alkyl-2-(3-hydroxyphenyl)-2-ethyl-alkylamines
Assignee: Hoechst AG
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Filing: 1961-03-08
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Granted: 1965-06-08
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Expires: 1981-03-08
Abstract
No abstract record available.
Inventors
- 👤 Krohs Walter
- 👤 Ther Leopold
- 👤 Vogel Gerhard
- 👤 Ott Heinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:38
CPC Classifications
C; C07; C07C; C07C209/00; C07C209/68; A; A61; A61K; A61K31/00; A61K31/13; A61K31/135; A61K31/137
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
A MEMBER SELECTED FROM THE GROUP CONSISTING OF PHENYLALKYLAMINES OF THE FORMULA
Claim 2
Dependent Claim
12 words
A MEMBER SELECTED FROM THE GROUP CONSISTING OF PHENYLALKYLAMINES 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) | 1968-06-07 | 1968-12-07 | 1969-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-07 | 1972-12-07 | 1973-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-07 | 1976-12-07 | 1977-06-08 | $7700.00 | Window Closed / Lapsed |