Pouring form for molded window sills and method of using same
CA 1188905 A · Owner: Simpson, Norbert E. · Inventors: Simpson, Norbert E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a pouring form for molded window sills characterized by a rigid frame having a generally J-shaped cross section defined by an upstanding flange, a base member depending from the lower margin of the upstanding flange and an upturned flange depending from the remote margin of the base member cooperating therewith and with the upstanding flange to produce an upwardly-opening channel; a first generally L-shaped insert having an upstanding flange paralleling the corresponding flange of the frame adapted to rest thereagainst in supporting relation thereto and a shaped flange depending from the lower margin of the upstanding flange bridging the gap between the latter and …
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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 June 18, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 18, 2002.
- 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.