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Expired Canadian patentCanada

Roofing membrane puller and method of use

CA 2521437 C · Owner: Traska, Jeff · Inventors: Traska, Jeff

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

A membrane puller for pulling a sheet of membrane material over an underlying surface has a frame with a lever arm pivotally attached to the frame for pivotal movement between a first position and a second position. A foot actuatable clamp assembly is carried by the frame for relative movement with the frame in response to pivotal movement of the lever arm. A cable has one end adapted for operable attachment to the lever assembly and another end adapted for operable attachment to the clamp assembly. The clamp assembly moves conjointly with the body via the cable and in response to pivotal movement of the lever arm toward its second position to pull the membrane material toward the front of …

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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

  • Filed September 27, 2005 and granted May 28, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 27, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 27, 2005
GrantedMay 28, 2013
Term endedSeptember 27, 2025
Patent numberCA 2521437 C
Classification (IPC)E04D15/04 +1 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedSep 27, 2005Patent grantedMay 28, 2013Term endedSep 27, 2025

Sources & verification

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