Friction balance and jamb liner for window sash
CA 1251356 A · Owner: Citation-Walthers Co. · Inventors: Suess, Jack E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The specification discloses an improved jamb liner and novel friction shoe balance arrangement for a cottagestyle window enabling the friction shoe balance or position-, er, concept to be utilized with window sash having a plow of nonrectangular cross section, and in "non take-out" type double hung or vertical slidable windows. The jamb liner includes a body securable to the jamb and a channel in which the friction shoe rides extending into the sash plow. The channel comprises a pair of sidewalls projecting outwardly from the jamb liner body into the plow each sidewall, including end portions shaped to generally conform to the nonrectangular portion of the plow, and disposed along 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 March 21, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 21, 2006.
- 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.