Paint roller frame including snap-on cover for outboard end cap
CA 2003105 C · Owner: Wooster Brush Company (The) · Inventors: Barker, Richard L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Paint roller frame includes a snap-on cover for the outboard end cap. The cover has an end wall which extends the full radial extent of the outboard end cap and an axial skirt portion which has a greater axial length than the radial outermost surface of the outboard end cap. The cover is retained on the outboard end cap by an internal annular rib which has an axially outwardly facing inclined surface that engages a correspondingly axially inwardly inclined surface on the axial inner end of the radial outermost surface of the outboard end cap.
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 16, 1989 and granted August 31, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 16, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 16, 2011.
- 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.