Insulated sectional door and method of construction
CA 2425320 A1 · Owner: Davidson, Dewayne J. · Inventors: Davidson, Dewayne J.; Mullet, Willis J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A door (10) made in accordance with the present invention includes a plurality of panels (20) with opposed stiles (24 25) being positioned at , the, longitudinal edges of a faceplate (21) of each panel (20) and with opposed rails, (26, 27) being positioned at the lateral edges of the faceplate (21) of each panel (20). An insulation assembly (30) includes a sheet of insulation material, (31) and a backing sheet (32) which has edges (33) which overhang the lateral edges of the sheet of insulation material (31). The insulation assembly (30) is, installed in the door (10) by engaging the stiles (24 25) with the , longitudinal, edges of the sheet of insulation material (31) to flex the same …
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 April 14, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 14, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 14, 2025.
- 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.