Expired Canadian patentCanada
Centrifugally actuated tube rotor mechanism
CA 2216056 C · Owner: Walters, Michael R. · Inventors: Walters, Michael R.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to an apparatus for producing rotation of a vessel about its longitudinal axis during centrifugation. The apparatus of the present invention is adapted for placement within, for example a centrifuge rotor.
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 September 17, 1997 and granted May 23, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 17, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 17, 2019.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 17, 1997
GrantedMay 23, 2000
Term endedSeptember 17, 2017
Patent numberCA 2216056 C
Classification (IPC)B04B5/02
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.