Spraying device
CA 2055237 C · Owner: Noakes, Timothy J. · Inventors: Noakes, Timothy J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electrostatic spraying device comprises a housing (10) incorporating a cartridge (16) containing liquid, such as a fragrance-producing oil which is to, be sprayed via a vertically disposed capillary structure (22), electrical potential being applied to the liquid so that the liquid is drawn across the end face of the capillary structure and is sprayed as a plurality of ligaments which break up into droplets.
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
- Filed November 8, 1991 and granted November 5, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 8, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 8, 2013.
- 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.