Invalid hoists
CA 2007396 C · Owner: Arjo.Med.Aktiebolag Limited · Inventors: Richards, Derek John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In order to raise infirm or disabled persons from a sitting to a generally standing position a hoist, comprises a mast, a carrier movable along the mast and a, U-shaped lifting member which is connected at its closed end to an upper end of the mast for pivotable movement about a horizontal axis and which at its open part provides laterally spaced attachment points for the attachment of a body sling. The hoist also includes a Ushaped strut pivotably connected at its closed end to the carrier and at its open part to the open part of the lifting member, and an operating mechanism for raising and lowering the carrier along the mast to thereby move the attachment points along an arcuate path. …
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 January 9, 1990 and granted September 17, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 9, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 9, 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.