Sheet material having a fibrous surface and method of making the same
CA 2197652 C · Owner: Dobrin, George Christopher · Inventors: Young, Terrill Alan; Dobrin, George Christopher; Thomas, Dennis Albert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for forming a sheet material having a fibrous surface and the sheet material produced thereby; the fibers are produced by deposition of a heated thermally sensitive material on to a substrate which is transported at a , velocity approximately equal to the velocity of the material being deposited by manipulating the fiber density and denier the sheet material can be made , to be either softer or rougher to the touch.
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 August 1, 1995 and granted October 2, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 1, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 1, 2017.
- 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.