Expired Canadian patentCanada
Wear resistant interlocking tile with magnetic backing
CA 1115195 A · Owner: Minnesota Mining And Manufacturing Company · Inventors: Hensley, William G.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Composite structures for use in providing wear and abrasion resistant lines are composed of elastomeric or magnetic elastomeric backing with adhered interlocking refractory tile.
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 29, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 29, 1998.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 25, 1977
GrantedDecember 29, 1981
Term endedDecember 29, 1998
Patent numberCA 1115195 A
Classification (IPC)B32B1/00
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.