Hair styling protection pillowcase
CA 2183002 C · Owner: Messier, Angele · Inventors: Messier, Angele
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for supporting a person's head while minimizing the amount of friction between the person's hair and the device comprising at least two pieces of fabric assembled together in such a manner as to allow for a satin-smooth sliding of one in relation to the other. A third piece of fabric with the same sliding properties can be added to receive the person's head and a fourth piece of fabric can be sewn to the assembly on three sides to form a pillowcase.
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 September 10, 1996 and granted January 12, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 10, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 10, 2018.
- 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.