Patent Yard Sign in
Expired Canadian patentCanada

Repair and reinforcement method for preexisting structures and an anisotropic textile used therefor

CA 2236035 C · Owner: Suzumura, Yasushi · Inventors: Sugimori, Masahiro; Yokochi, Tadashi; Konishi, Hideo

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

The present invention relates to a repair and reinforcement method for preexisting structures such as buildings or the like, and in particular relates to a, repair and reinforcement method for concrete structures and to an anisotropic textile employed in this method. The present invention provides a method which permits execution even in low temperature conditions and which, moreover exhibits superior repair and reinforcement effects in a short period of time; during the impregnation of a resin into a sheet material comprising reinforcement fibers and the curing of this resin to form a fiberreinforced resin layer which is used in the repair and reinforcement of preexisting structures a …

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

  • Filed November 1, 1996 and granted December 10, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 1, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 1, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 1, 1996
GrantedDecember 10, 2002
Term endedNovember 1, 2016
Patent numberCA 2236035 C
Classification (IPC)E01D22/00 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedNov 1, 1996Patent grantedDec 10, 2002Term endedNov 1, 2016

Sources & verification

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