US2520516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cyclic amines and method of making them
Assignee: WM S MERRELL Co
•
Filing: 1945-01-19
•
Granted: 1950-08-29
•
Expires: 1965-01-19
Abstract
No abstract record available.
Inventors
- 👤 Gerritt John Van Zoeren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:31
CPC Classifications
C; C07; C07D; C07D333/00; C07D333/02; C07D333/04; C07D333/06; C07D333/14; C07D333/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A COMPOSITION HAVING USEFUL SYMPATHOMIMETIC PROPERTIES, SAID COMPOSITION CONTAINING AS ITS ESSENTIAL ACTIVE INGREDIENT A DICYCLIC AMINO COMPOUND HAPING A SATURATED CYCLOAKLANE RING WHEREIN ONE CARBON ATOM CARRIES THE AMINO NITROGEN AND AN ADJACENT CARBON ATOM OF THE CYCLOALKANE RING IS ATTACHED TO ANOTHER RING, SAID OTHER RING BEING A MEMBER OF THE CLASS CONSISTING OF THE UNSUBSTITUTED BENZENE NUCLEUS AND THE UNSUBSTITUTED THIOPHENE NUCLEUS.
Claim 2
Dependent Claim
65 words
A COMPOSITION HAVING USEFUL SYMPATHOMIMETIC PROPERTIES, SAID COMPOSITION CONTAINING AS ITS ESSENTIAL ACTIVE INGREDIENT A DICYCLIC AMINO COMPOUND HAPING A SATURATED CYCLOAKLANE RING WHEREIN ONE CARBON ATOM CARRIES THE AMINO NITROGEN AND AN ADJACENT CARBON ATOM OF THE CYCLOALKANE RING IS ATTACHED TO ANOTHER RING, SAID OTHER RING BEING A MEMBER OF THE CLASS CONSISTING OF THE UNSUBSTITUTED BENZENE NUCLEUS AND THE UNSUBSTITUTED THIOPHENE NUCLEUS.
References Cited (Backward Citations)
US2276587A
Cited
US2367702A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-28 | 1954-02-27 | 1954-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-28 | 1958-02-27 | 1958-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-28 | 1962-02-27 | 1962-08-29 | $7700.00 | Window Closed / Lapsed |