Patent US3248401A successfully refreshed from Google Patents.
US3248401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diethylaminoe hoxybenzoyl benzofurans
Assignee: —
•
Filing: —
•
Granted: 1966-04-26
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Expires: 1983-04-26
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:14
CPC Classifications
C; C07; C07D; C07D307/00; C07D307/77; C07D307/78; C07D307/82; C07D307/84; C07D307/85; C07D405/00; C07D405/02; C07D405/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
A COMPOUND OF THE CLASS CONSISTING OF A FREE BASE AND THE PHARMACEUTICALLY ACCEPTABLE ACID ADDITION SALTS THEREOF, THE FREE BASE BEING REPRESENATED BY THE FORMULA:
Claim 2
Dependent Claim
26 words
A COMPOUND OF THE CLASS CONSISTING OF A FREE BASE AND THE PHARMACEUTICALLY ACCEPTABLE ACID ADDITION SALTS THEREOF, THE FREE BASE BEING REPRESENATED BY THE 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) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |