Expired Canadian patentCanada
Plastic anchor for use with masonry over steel stud back-up walls
CA 2292177 C · Owner: Brook Van Dalen & Associates Limited · Inventors: Van Dalen, Mark
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is described an improved anchor body made up of an inner portion adapted for connection to a back-up wall an outer portion adapted for , connection to a masonry wall and an intermediate membrane flange.
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 December 14, 1999 and granted August 6, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 14, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 14, 2021.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 14, 1999
GrantedAugust 6, 2002
Term endedDecember 14, 2019
Patent numberCA 2292177 C
Classification (IPC)E04C5/12 +2 more
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.