Primer/membrane waterproofing system
CA 1330752 C · Owner: Wiercinski, Robert Alan · Inventors: Wiercinski, Robert Alan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A waterproofing system including a water-based latex primer composition and a waterproofing adhesive membrane. The primer exhibits excellent adhesion to concrete and an excellent surface for adhesion by the waterproofing membrane. The primer is a latex emulsion including butyl acrylate, styrene and acrylonitrile.
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
- Granted July 19, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 19, 2011.
- 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.