Self-sealing plate or gripper assembly for single ply roofing
CA 1215809 A · Owner: The Goodyear Tire & Rubber Company · Inventors: Oliveira, Paul E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A self contained sealing assembly for an elastomeric single ply roof comprising a metal or hard plastic pressure member 10, said member having a position to receive an elongated fastening member 8 having a penetrating point and a forcing head and having sealant 11 along bottom side of said pressure member and on top side around the position to receive said elongated fastening member. Screws and large flat headed nails 8 are preferred as the elongated fastner member.
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
- Granted December 30, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 30, 2003.
- 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.