Auto-release vacuum device
CA 2857805 C · Owner: Delaware Capital Formation, Inc. · Inventors: Perlman, Maurice; Attee, Keith S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A vacuum cup assembly of a material handling system the vacuum cup assembly being engagable with an object and movable to move the object the vacuum cup assembly comprising a vacuum device adapted to connect to a pressurized air supply the vacuum device having a vacuum passageway and a venture nozzle positioned within the vacuum device; a vacuum cup configured to engaged an object; the pressurized air supply being activatable to force pressurized air through the venture nozzle to generate the at least partial vacuum in the vacuum passageway and at the vacuum cup when the vacuum cup is engaged with an object the pressurized air flowing through the venture nozzle and drawing air from 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 July 7, 2006 and granted October 10, 2017. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 7, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.