Portable display system
CA 2020551 C · Owner: Kemeny, Matthias D. · Inventors: Kemeny, Matthias D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A display system includes a collapsible rectangular, frame having a plurality of rectangular box units. Each box unit includes rectangularly arranged sides which are defined by a pair of arms, joined to one another by a scissor connection. The top and bottom side arms include at least one telescoping member therein. Connector-block nodes are located at each corner of the box units and include pivot means for securing the arms thereto for permitting the frame to be collapsed to a compact form. Plural display supports extend along files of connected block nodes on the front face of the frame, each support extending between adjacent connector block nodes and including a pair of display-support …
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 July 5, 1990 and granted December 21, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 5, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 5, 2012.
- 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.