Some of the information on this Web page has been provided by external sources. The Government of Canada is not responsible for the accuracy, reliability or currency of the information supplied by external sources. Users wishing to rely upon this information should consult directly with the source of the information. Content provided by external sources is not subject to official languages, privacy and accessibility requirements.
Any discrepancies in the text and image of the Claims and Abstract are due to differing posting times. Text of the Claims and Abstract are posted:
(12) Patent: | (11) CA 1189536 |
---|---|
(21) Application Number: | 1189536 |
(54) English Title: | NITROARYLALKYLSULFONE DERIVATIVES AS GAMETOCIDES |
(54) French Title: | DERIVES DU NITROARYLALCOYLSULFONE, GAMETOCYTOCIDES |
Status: | Term Expired - Post Grant |
(51) International Patent Classification (IPC): |
|
---|---|
(72) Inventors : |
|
(73) Owners : |
|
(71) Applicants : |
|
(74) Agent: | SMART & BIGGAR LP |
(74) Associate agent: | |
(45) Issued: | 1985-06-25 |
(22) Filed Date: | 1982-04-08 |
Availability of licence: | N/A |
Dedicated to the Public: | N/A |
(25) Language of filing: | English |
Patent Cooperation Treaty (PCT): | No |
---|
(30) Application Priority Data: | ||||||
---|---|---|---|---|---|---|
|
ABSTRACT OF THE DISCLOSURE
New compounds have the formula:
< IMG >
wherein R1 is C1-C6 alkyl, R2 and R3, each independently of the
other are hydrogen, C1-C6 alkyl, C1-C6 alkoxy, C1-C6 haloalkyl,
halogen, cyano, nitro or amino or, both together in the ortho-
position to each other as a -(CH=CH)2- group, complete a
naphthalene ring, and R4 is a hydrazinium or ammonium ion.
The new compounds are useful as active components in gametocidal
compositions.
Note: Claims are shown in the official language in which they were submitted.
Note: Descriptions are shown in the official language in which they were submitted.
Sorry, the representative drawing for patent document number 1189536 was not found.
2024-08-01:As part of the Next Generation Patents (NGP) transition, the Canadian Patents Database (CPD) now contains a more detailed Event History, which replicates the Event Log of our new back-office solution.
Please note that "Inactive:" events refers to events no longer in use in our new back-office solution.
For a clearer understanding of the status of the application/patent presented on this page, the site Disclaimer , as well as the definitions for Patent , Event History , Maintenance Fee and Payment History should be consulted.
Description | Date |
---|---|
Inactive: IPC assigned | 2012-12-13 |
Inactive: IPC assigned | 2012-12-13 |
Inactive: First IPC assigned | 2012-12-13 |
Inactive: Expired (old Act Patent) latest possible expiry date | 2002-06-25 |
Inactive: IPC removed | 1989-12-31 |
Grant by Issuance | 1985-06-25 |
There is no abandonment history.
Fee Type | Anniversary Year | Due Date | Paid Date |
---|---|---|---|
Registration of a document | 1998-02-23 |
Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
---|
NOVARTIS AG |
Past Owners on Record |
---|
ELMAR STURM |
ERNST FANKHAUSER |