Automatic dispensers for metering liquid soluble or suspendible materials
CA 1263341 C · Owner: Courtney, Andrew · Inventors: Courtney, Andrew
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
D.N. 7-5252A, AUTOMATIC DISPENSERS FOR METERING LIQUID SOLUBLE OR SUSPENDIBLE MATERIALS, ABSTRACT OF THE DISCLOSURE Dispensers for automatically metering liquid soluble or liquid suspendible materials into a liquid environment on an automatic basis dependent upon rise and fall of the level of the liquid into which the materials are to be added.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted November 28, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 28, 2006.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.