Insulated wall construction
CA 2104471 A1 · Owner: Roby, Edward F. · Inventors: Roby, Edward F.; Roby, Edward F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An insulated wall construction is provided utilizing spaced planar rigid foam plates (11, 12) each foam plate including an upstanding rib (13) formed about an upper and forward edge of each section, with a complementary groove (14) formed through each rear and bottom edge of each section. The construction includes a spacer rod (16) positioned medially of the sections the spacer rod (16), receivable within a rod support (18) the rod support fixedly, secured orthogonally to an external support plate (17) wherein the rod is directed through each section to receive the spaced rod therewithin. The spacer rod includes a plurality of apertures (19) between each lock pin (20) and captures an …
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 13, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 13, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 13, 2014.
- 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.