Edge sealing devices for membrane roof
CA 2035741 A1 · Owner: Hickman, John B. · Inventors: Kirby, Ralph; Hickman, John B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An assembly is provided for forming a roof edge on a building structure when the assembly is installed thereon with the building, structure having a horizontal roof surface and a vertical face surface with a sheet-like roofing material extending along the horizontal roof surface and overlapping a portion of the vertical face surface. The roof edge assembly includes a relatively thin but relatively rigid, clamping, member a portion of which has a generally L-shaped lateral crosssectional shape. The horizontal leg of the clamping member is adapted to engage the horizontal roof surface, and the vertical leg is adapted to engage the vertical face portion of the building structure with the, …
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 5, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 5, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 5, 2013.
- 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.