Spacer and method of use for straightening panels in a roof system
CA 2458900 C · Owner: Marshall, Joe · Inventors: Marshall, Joe
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A spacer is provided for use in a standing seam roof system in which roof panels are provided having a base portion and upstanding side flanges along opposed longitudinal sides of the panel. The panels are installed sequentially along roof purlins in a working direction. Occasionally a portion of each panel being installed trails in the working direction in relation to the remainder of the panel. A spacer element is provided with a hook for being suspended in the seam between upstanding side flanges of adjacent panels to advance the trailing portion of the panels and thereby straighten the panels of the roof system.
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 February 25, 2004 and granted July 17, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 25, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 25, 2026.
- 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.