Method and apparatus for modular stadium seating support system
CA 2278863 A1 · Owner: Lefler, James · Inventors: Matsumoto, Harold K.; Lefler, James; Youngquist, Andrew
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A modular structure is assembled through a multiplicity of modules aligned in a, series of horizontal rows, with each successive row being higher than the preceding row by, a given height. Each row is composed of series of adjacent modules of the same height in, that row, the modules composed of four vertical posts with adjacent modules sharing the, same two intermediate posts between them. In alternating rows the vertical , posts are, strengthened by widthwise crossbeams extending from adjacent the top of one vertical post, to adjacent the bottom the next vertical post for all widthwise pairs of vertical posts in the, given row. Each vertical post is anchored to the ground by being …
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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 27, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 27, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 27, 2021.
- 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.