Jack and components therefor
CA 1302389 C · Owner: Gruber, Rudolf · Inventors: Gruber, Rudolf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved jack comprising a lead screw having a driven end and an upstanding integral boss proximate the driven end, the driven end comprising a body abutting the upstanding boss and including an opening therethrough for receiving the end of the lead screw, the body carrying slots grooves or recesses, radiating from the opening and being in communication with the opening and carrying material from the lead screw displaced into the grooves thereby securing the body to the lead screw.
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 June 2, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 2, 2009.
- 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.