Patent US3227716A successfully refreshed from Google Patents.
US3227716A
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Therapeutically-active dibenzocycloheptane derivatives
Assignee: Koninklijke Pharmaceutische Fabrieken NV
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Filing: 1963-04-30
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Granted: 1966-01-04
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Expires: 1983-04-30
Abstract
No abstract record available.
Inventors
- 👤 August F Harms
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:04
CPC Classifications
C; C07; C07D; C07D451/00; C07D451/02; C07D451/04; C07D451/06; C07C; C07C63/00; C07C63/33; C07C63/331
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
7 words
A NON-TOXIC ACID ADDITION SALT OF 2-(DIBENZO(A,D)1,4-CYCLOHEPTADIEN-5-YLOXY)-N-MORPHOLINOETHYLAMINE.
Claim 2
Dependent Claim
8 words
A NON-TOXIC ACID ADDITION SALT OF 2-(DIBENZO(A,D)-1, 4-CYCLOHEPTADIEN-5-YLOXY)-N,N-DIMETHYLETHYLAMINE.
Claim 3
Dependent Claim
8 words
A NON-TOXIC ACID ADDITION SALT OF 2-(DIBENZO(A,D)-1, 4-CYCLOHEPTADIEN-5-YLOXY)-N-PYRROLIDINYLETHYLAMINE.
References Cited (Backward Citations)
US2948732A
Cited
US3014911A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |