Working material for construction or repair
CA 1330151 C · Owner: Muramatsu, Ichiro · Inventors: Mita, Hiroshi; Okoshi, Noboru; Muramatsu, Ichiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Titie of the Invention, WORKING MATERIAL FOR CONSTRUCTION OR REPAIR Abstract of the Disclosure, A working material for construction or repair comprising (A) a mixture of 0.5 to 30 % by weight of (a-1) a hydroxide of a divalent or higher basic metal 10, to 99 % by weight of (a-2) an aggregate and 0.5 to 70 % of (a-3) a bituminous substance, the total amount of these materials (a-1), (a-2) and (a-3) being 100 % by weight, and covering the mixture (A), (C) oxidized rosin or a mixture of (C) oxidized rosin with (D) a compound containing more than one carboxyl group per molecule on an average and/or (B) a liquid hydrocarbon or a vegetable oil.
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 June 14, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 14, 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.