Apparatus for clamping a work piece in a well defined position
CA 2122809 C · Owner: Erowa Ag · Inventors: Obrist, Basil
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The clamping apparatus comprises a base member adapted to be fixed in the working area of the machining apparatus and a work piece carrier member adapted to be put onto the base member and to be clampingly fixed to the base member the work piece carrier, member being adapted to receive a work piece to be machined. Aligning elements fixed to the work piece carrier member and to the base member and cooperating in pairs define the position of the work piece carrier member in X-, Y- and Z-direction as well as with regard to its angular orientation. For the definition of the X-Y-position, three aligning element pairs are provided. Two of them are located opposite to each other at the two lateral …
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 May 3, 1994 and granted November 25, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 3, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 3, 2016.
- 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.