Roofing/siding system and lock seam therefor
CA 1251318 A · Owner: Nuckel, William H. Jr. · Inventors: Nuckel, William H. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract:, The invention provides a panel for a roofing/siding system to overlie and cover a substrate. The system comprises a number of such panels in side-by-side interlocking relation, and clip means for securing the panels to the substrate. Each of the panels comprises a longitudinally extending pan having a pair of longitudinal edge portions. One of the longitudinal edge portions is bent to form a lock seam and the other of the longitudinal edge portions is bent to form a batten the batten being configured to cover the lock seam of the adjacent panel in the system. The batten has a free end bent inwardly towards the pan and defining a lock lip. The lock lip has a neck terminating in a …
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 March 21, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 21, 2006.
- 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.