Laminar glass assemblies
CA 1269604 C · Owner: Yates, John E. · Inventors: Cook, Trevor A.; Yates, John E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A laminar glass assembly comprises two sheets of glass with an intermediate plastics film disposed between them. The plastics film is directly adhered to one of the glass sheets by a thin adhesive layer and to the other of the glass sheets by a layer of adhesive which has structural properties and is of substantial thickness compared to that of the film. Thus the thick structural adhesive film provides structural reinforcement of the resultant laminate, and this adhesive and its thickness are chosen to provide the desired laminate strength which is thus not determined by the intermediate plastics film. Hence the latter can be chosen independently of its strength and may be a thin film …
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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 May 29, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 29, 2007.
- 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.