US3880932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
4-(2-Naphthyl)-4-alkyl-3-buten-2-ones
Assignee: Sandoz AG
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Filing: 1973-08-20
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Granted: 1975-04-29
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Expires: 1993-08-20
Abstract
Abstract The compounds are 4-naphthyl-4-lower alkyl-substituted -3-buten2-ones, and -2-halo-1,3-butadienes, e.g., 2-(2-(6methoxynaphthyl))-2-penten-4-one, and are useful as pharmaceuticals.
Inventors
- 👤 Paul L Anderson
- 👤 Darryl A Brittain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:25
CPC Classifications
C; C07; C07C; C07C49/00; C07C49/20; C07C49/255; C07C323/00; C07C45/00; C07C45/51; C07C45/511; C07C45/512; C07C49/213; C07C49/217; C07C49/223; C07C49/227; C07C49/233; C07C49/235
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
4 words
COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
4 words
COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
9 words
A compound of claim 1 wherein R1 is methyl.
Claim 4
Dependent Claim
9 words
A compound of claim 1 wherein R is alkoxy.
Claim 5
Dependent Claim
13 words
The Compound of claim 3 wherein R is methoxy and R1 is methyl.
Claim 6
Dependent Claim
50 words
A compound of claim 1 wherein R is haLo having an atomic weight of from about 19 to 80, difluoromethoxy, alkyl having from one to four carbon atoms, alkoxy having from one to four carbon atoms, or alkylthio having from one to four carbon atoms; and R1 is as defined.
References Cited (Backward Citations)
US2932652A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-28 | 1978-10-28 | 1979-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-28 | 1982-10-28 | 1983-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-28 | 1986-10-28 | 1987-04-29 | $7700.00 | Window Closed / Lapsed |