US2827460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alpha, alpha-diphenyl-beta-amino-propanols
Assignee: Hoechst AG
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Filing: 1955-10-17
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Granted: 1958-03-18
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Expires: 1975-10-17
Abstract
No abstract record available.
Inventors
- 👤 Stein Leonhard
- 👤 Lindner Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:46
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/08; C07D295/084; C07D295/092; B; B22; B22D; B22D7/00; B22D7/06; B22D7/10; C07D211/00; C07D211/04; C07D211/06; C07D211/08; C07D211/18; C07D211/20; C07D211/22; C07D217/00; C07D217/02; C07D217/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
20 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALPHA,ALPHA-DIPHENYL-BETA-AMINO-PROPANOLS AND ACID ADDITION SALTS THEREOF, SAID COMPOUND HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
20 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALPHA,ALPHA-DIPHENYL-BETA-AMINO-PROPANOLS AND ACID ADDITION SALTS THEREOF, SAID COMPOUND HAVING THE GENERAL FORMULA:
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-17 | 1961-09-16 | 1962-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-17 | 1965-09-16 | 1966-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-17 | 1969-09-16 | 1970-03-18 | $7700.00 | Window Closed / Lapsed |