Thermal glass structural method and device
CA 1048252 A · Owner: Shelver, Lyle N. · Inventors: Shelver, Lyle N.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention is a method and apparatus for performing such method, whereby ordinary single glass building elements, such as windows, doors and the like are converted to double walled, partially evacuated elements by the use of special adaptive elements in combination with sealant and desicant materials. The apparatus includes the combination with a frame for holding a single pane of glass of an adaptive element comprising an elongated base member having an elongated rail depending from one side thereof and perpendicular to the plane thereof, said rail being inserted in said frame in lieu of glass, a pair of elongated guides--one adjacent each edge of said base--depending from said base in …
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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 February 13, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 13, 1996.
- 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.