Bathroom tissue dispenser core removal
CA 2010903 C · Owner: Wood Wyant Inc. · Inventors: Morand, Michel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention is to a spindle for use in mounting a toilet paper roll thereon, and more particularly for use, in mounting a coil of toilet paper without the core, on the, spindle. The spindle has a flange near its outer end that stops movement of the core as the toilet paper roll is pushed onto the spindle during mounting. Continued pushing of the roll onto the spindle while the core is stopped strips the, coil of paper off the core. The coil ends up on the spindle and the core is disposed of.
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 February 26, 1990 and granted July 27, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 26, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 26, 2012.
- 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.