Locking slide block
CA 2098750 C · Owner: Schmidt, Melvin J. · Inventors: Ver Steeg, Lawrence J.; Schmidt, Melvin J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed at a locking slide block for slidably and pivotally mounting a window sash to a side member of a window frame having a vertical jamb channel. The window pivot has a housing with oppositely disposed sliding surfaces for guiding the housing in the jamb channel. Operably connected to the housing is a locking spring for selectively engaging the jamb channel and locking the housing in a fixed position. A sash pivot is operably connected to the sash and to the housing. The housing also has a sash pivot retainer spring. The pivot and housing have flanges to prevent the pivot from being pulled away from the housing proximately parallel to the longitudinal axis of …
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 June 18, 1993 and granted May 4, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 18, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 18, 2015.
- 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.