Method and apparatus for controlling a storage and retrieval machine
CA 2027881 C · Owner: Sorensen, B. Chuck · Inventors: Devroy, Craig A.; Sorensen, B. Chuck
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
1), Abstract of the Disclosure, A control system for a storage and retrieval machine is disclosed in which a supervisory control means is responsive to operating commands from a remote source to provide operating instructions for the control of the base carriage, and shuttle of the storage and retrieval machine. Control means for the base contains base operating parameters and is responsive to base operating instructions from the supervisory control means to control movement of the base in accord with the base operating instructions and the base parameters. Control means for the carriage which is, movably mounted on a vertical mast of the storage and retrieval machine, contains carriage …
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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 October 17, 1990 and granted May 17, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 17, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 17, 2012.
- 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.