One-piece flashing
CA 2291597 C · Owner: Architectural Exterior Products, Inc. · Inventors: Givens, Robert D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention comprises a one-piece flashing formed with first and second panels joined together watertight, at a first angle along a first line or region, of, intersection. The first angle may be a right angle or it may be the angle between a sloping roof and a vertical wall. The flashing further includes a third panel that makes a watertight junction with the first panel along a second line, or region. of intersection where the first, and third panels meet at a second angle. The third panel also makes a watertight junction with the second panel along a third line, or region, of intersection and at a third angle, and the three lines, or regions of, intersection meet at a common point. It …
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 30, 1999 and granted May 22, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 30, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 30, 2021.
- 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.