Window assembly
CA 2218091 A1 · Owner: Petta, Gabriele · Inventors: Petta, Gabriele
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A snap fitted dual frame window assembly provides for convenient installation of a window in a basement foundation of a residential home. An outer frame is used as a form or spacer for the window during pouring of a concrete foundation wall and has a sloping recessed wall to accommodate an inner vinyl frame. Vinyl frame clips are attached to the inside of the outer frame to secure the inner vinyl frame. The inner vinyl frame includes a channel section which can be forced over the frame clips and then is held, in a snap fit by the frame clips. One arm of a, hinged window sash is mounted on the inner frame and the other is mounted on a window frame. The inner frame can be easily removed from …
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 October 8, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 8, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 8, 2019.
- 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.