US3919230A
Expired / Lapsed
US
⏱️ 0.0 years remaining
{62 -Naphthylmethyl piperazinyl derivatives
Assignee: GlaxoSmithKline LLC
•
Filing: 1974-02-07
•
Granted: 1975-11-11
•
Expires: 1994-02-07
Abstract
Abstract Beta -Naphthylmethyl piperazinyl derivates having antiParkinsonism activity prepared by condensation of Beta chloromethylnaphthalene with the appropriate substituted piperazine.
Inventors
- 👤 Harlan F Hill
- 👤 John J Lafferty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:46
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/02; C07D295/027; C07D295/03; C07D295/04; C07D295/06; C07D295/073; C07D295/08; C07D295/096
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
6 words
A CHEMICAL COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
6 words
A CHEMICAL COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
13 words
A chemical compound in accordance with claim 1 in which R1 is hydrogen.
Claim 4
Dependent Claim
13 words
A chemical compound in accordance with claim 2 in which R is pyridyl.
Claim 5
Dependent Claim
13 words
A chemical compound in accordance with claim 2 in which R is pyrimidinyl.
Claim 6
Dependent Claim
13 words
A chemical compound in accordance with claim 2 in which R is phenyl.
Claim 7
Dependent Claim
14 words
A chemical compound in accordance with claim 3 in which R is a 2-pyridyl.
Claim 8
Dependent Claim
13 words
The chemical compound of claim 6 in the form of a free base.
References Cited (Backward Citations)
US3299067A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-10 | 1979-05-12 | 1979-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-10 | 1983-05-12 | 1983-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-10 | 1987-05-12 | 1987-11-11 | $7700.00 | Window Closed / Lapsed |