Portable seating and locking apparatus therefor
CA 2377173 A1 · Owner: Luedke, Thomas J. · Inventors: Botts, Rollin D.; Luedke, Thomas J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A portable seated riser system includes a plurality of riser stations including decks and supporting frames. The decks and frames provide for a number of levels at different heights arranged in an ascending riser configuration. Portable theater seats can be mounted on the decks and include locks and supports mountable to the frames for moving and securing the theater seats to the stage. The locks include a support and a linkage that automatically extends around behind the rear of the stage decks and automatically lock to the mounting plates of the theater seats when inserted into the locks.
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 28, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 28, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 28, 2022.
- 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.