Long-lived heavy-duty pavement marking
CA 1136821 A · Owner: Minnesota Mining And Manufacturing Company · Inventors: Ethen, John L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Longer-lived pavement markings are provided by adhering to the pavement a sheet material about one-fourth millimeter or more thick that comprises a carboxyl-modified acrylonitrile-butadiene polymer and particulate fillers dispersed in the polymer.
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 December 7, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 7, 1999.
- 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.