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Expired Canadian patentCanada

Material for fixing anchor bolt or like and method of manufacturing same

CA 1100104 A · Owner: Nippon Jikkou Kabushiki Kaisha · Inventors: Yano, Yoshiichi; Sato, Takeshi; Tada, Hiroji

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A device for fixing an anchor bolt or the like which is, used, in case of inserting and planting an anchor bolt in a planting hole bored in a concrete foundation or base rock for filling, the gap between the planting hole and the anchor bolt to couple them both, in which paste-like base material and hardener for cold-setting resin requiring hardener are filled separately in long glass tubes together with artificial solid ball-like aggregates, and a plurality of pairs of them are arranged in a hollow tubular structure and adhered mutually with adhesive. The ends of the tubes are sealed and secured with end caps.

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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 April 28, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 28, 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.
FiledJune 19, 1979
GrantedApril 28, 1981
Term endedApril 28, 1998
Patent numberCA 1100104 A
Classification (IPC)B65D81/32

Timeline

Timeline From CIPO dates

1980198219841986198819901992199419961998Application filedJune 19, 1979Patent grantedApril 28, 1981Term endedApril 28, 1998

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.