Improved shelving base method and system
CA 2306522 C · Owner: Richards-Wilcox, Inc. · Inventors: Mittag, Douglas C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A shelving unit apparatus and method comprises vertical posts arranged at corners of a rectangle. A plurality of shelves are vertically spaced from one another and supported by the posts. At a front of the shelving unit a channel-shaped base rests on a floor on which the shelving unit rests the base being attached to the front two posts at ends of the base by projecting head rivets received in keyhole-shaped slots in the front two posts. At least one aperture in the base portion of the base receives a mounting bolt to be anchored to the floor. The bottom shelf has its front end resting on an upper edge of the front vertical wall of the base. A rear of the bottom shelf is supported by a …
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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 April 25, 2000 and granted July 1, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 25, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 25, 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.