Reciprocating floor construction
CA 2116151 A1 · Owner: Quaeck, Manfred W. · Inventors: Quaeck, Manfred W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A reciprocating floor construction comprises a plurality of base sections, each of the base sections having a bottom with an interior, a central rib on the bottom interior and a pair of, sides substantially perpendicular to the bottom. Bearings are located on the central rib and on the sides of each of the base sections. The reciprocating floor construction also includes a plurality of slats, with two of the slats located on each of the base sections. Each of the slats has a load bearing portion with an interior and pair of bearing guide channels on the interior. One of the bearing guide channels of each slat contains the bearing on the base section central rib and the other bearing guide …
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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 February 22, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 22, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 22, 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.