Patent US3898331A successfully refreshed from Google Patents.
US3898331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
4{40 -Dehydro-oleandrin and pharmaceutical composition thereof
Assignee: BEIERSDORF HAFTNG A CORP OF GERMANY GmbH
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Filing: 1974-04-25
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Granted: 1975-08-05
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Expires: 1994-04-25
Abstract
Abstract A new compound is disclosed which is named 4''-dehydro-oleandrin. It has the structure AND IS USEFUL AS A CARDIOTONIC.
Inventors
- 👤 Rudolf Petersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:30
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/70; A61K31/7028; A61K31/7034; A61K31/704
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
15 words
A PHARMACEUTICAL COMPOSITION COMPRISING A PHARMACEUTICALLY EFFECTIVE AMOUNT OF 4''-DEHYDRO-OLEANDRIN AND A PHARMACEUTICALLY ACCEPTABLE CARRIER.
Claim 2
Dependent Claim
15 words
A PHARMACEUTICAL COMPOSITION COMPRISING A PHARMACEUTICALLY EFFECTIVE AMOUNT OF 4''-DEHYDRO-OLEANDRIN AND A PHARMACEUTICALLY ACCEPTABLE CARRIER.
Claim 3
Dependent Claim
4 words
4''-Dehydro-oleandrin having the structure
Claim 4
Dependent Claim
4 words
4''-Dehydro-oleandrin having the structure
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) | 1978-08-04 | 1979-02-03 | 1979-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-04 | 1983-02-03 | 1983-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-04 | 1987-02-03 | 1987-08-05 | $7700.00 | Window Closed / Lapsed |