Folding frame for a poster
CA 2178625 A1 · Owner: Hetzer, Norbert · Inventors: Hetzer, Norbert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The folding frame consists of several spars (1-4) forming a polygon in which each spar consists of a lower section (5) an upper, section (6) and at least one spring component (7). The fitting of a supporting strip (18) at the free end of an inner web (22) provides a good vertical distance between the poster (9) or the like to be fitted in the frame and the supporting surface (34) and hence good rear ventilation.
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 11, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 11, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 11, 2016.
- 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.