Window mastic strip having improved, flow-resistant polymeric matrix
CA 2070367 C · Owner: Box, James A. · Inventors: Krysiak, Gary D.; Box, James A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to a deformable window strip used to separate and seal two panes of glass. More specifically the deformable window strip of the present invention comprises a flow resistant polymeric matrix which substantially decreases the need for rheological modifiers.
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 June 3, 1992 and granted May 15, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 3, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 3, 2014.
- 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.