Mobile shelving carriage
CA 1282036 C · Owner: Leist, Alan R. · Inventors: Griswold, Kenneth D.; Leist, Alan R.; Leist, Alan R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The specification discloses a simple yet, extremely strong and serviceable, mobile shelving carriage construction. A first extruded frame member defines integral screw bosses within its cross-sectional shape. second frame member is secured to the first frame member by screws secured within the integral bosses. A roller axle is mounted in the first frame member and includes a circumferential groove aligned with one of the screw bosses. The securement screws interfit with the axle groove to retain the axle within the first frame member.
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
- Granted March 26, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 26, 2008.
- 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.