Cold patching
CA 1058439 A · Owner: Arco Polymers · Inventors: Burkhart, Gerald W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Improved cold patching of pavements, drives walks, or the like, is obtained by applying to or mixing with the patching material a solution of thermoplastic polymeric resin. When the solution has evaporated or the solvent is volatized, the patch and the surrounding area are reinforced and more thoroughly bonded together. If the area requiring repair has appreciable depth it is, preferable that the margins of the repair area receive an application of the polymeric resin solution so that the bond between the patch and the adjacent area is reinforced and made more secure. 1.
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 17, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 17, 1996.
- 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.