US3637845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluoroalkanesulfonamides
Assignee: 3M Co
•
Filing: 1969-04-14
•
Granted: 1972-01-25
•
Expires: 1989-04-14
Abstract
Abstract THIS INVENTION RELATES TO CERTAIN N-ACYLFLUOROALKANESULFONAMIDES WHICH ARE ACTIVE ANTICONVULSANTS. PROCESSES FOR THE PREPARATION OF THE COMPOUNDS ARE DESCRIBED
Inventors
- 👤 George G I Moore
- 👤 Alvin C Conway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:18
CPC Classifications
C; C07; C07C; C07C311/00; C07C311/01; C07C311/02; C07C311/09
Claims Analysis
Total Claims: 0
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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) | 1975-01-24 | 1975-07-26 | 1976-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-24 | 1979-07-26 | 1980-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-24 | 1983-07-26 | 1984-01-25 | $7700.00 | Window Closed / Lapsed |