Paint brush with replaceable bristle pack
CA 2179516 C · Owner: Kwick Clean And Green Ltd. · Inventors: Ledingham, Blake A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention pertains to a paint brush with a replaceable bristles pack. A unitary paint brush with replaceable bristles comprising: (a) a paint brush body and handle (4), the body having formed in one end thereof opposite the handle a cavity (6) adapted for receiving a group of bristles (2); (b) at least one releasable member (10) secured to one side of the paint brush body and projecting over the cavity, (6), the releasable member (10) being capable of abutting the bristles (2) when moved to a first closed position and being removed from, the bristles (2) when moved to a second open position; (c) at least one movable securing member (32) for securing the hinged releasable member (10) in …
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 December 21, 1994 and granted April 10, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 21, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 21, 2016.
- 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.