Expired Canadian patentCanada
Window-box and support
CA 2003178 C · Owner: Brydges, Ronald · Inventors: Brydges, Ronald
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A window-box is formed from a plastic tray having a lip on its upper edge which hooks over a ridged connector strip mounted on a window-ledge. A pair of legs adjustably mounted on the bottom of the tray brace the box against the wall below the window-ledge.
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 November 16, 1989 and granted July 1, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 16, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 16, 2011.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 16, 1989
GrantedJuly 1, 1997
Term endedNovember 16, 2009
Patent numberCA 2003178 C
Classification (IPC)A01G9/00 +1 more
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.