Automatic conveyance system
CA 2029773 C · Owner: Fujitsu Limited · Inventors: Kitamoto, Shozo; Yokoyama, Tadao; Kawasoe, Masamichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An automatic conveyance system comprising a buffer storage for storing a plurality of unit racks containing units; a plurality of test cells for testing the units contained in the unit racks; a plurality of test cell controllers, each being provided in one of the test cells, and each for accepting a requirement to take out a unit rack from the buffer storage, to store a unit rack into the buffer storage, or to convey a unit rack from one of the test cells to another one of the test cells; an automatic guided vehicle for conveying a unit rack; and a computer connected to the test cell controllers by a single bus and having information of the unit racks stored in the buffer storage the …
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
- Filed November 13, 1990 and granted January 4, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 13, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 13, 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.