Method and apparatus for gel electrophoresis
CA 2131597 A1 · Owner: Sabanayagam, Chandran R. · Inventors: Sabanayagam, Chandran R.; Lai, Eric H.; Holzwarth, George M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, Disclosed is a method and apparatus for gel electrophoresis which simultaneously employs two or more electric fields in a single gel. According to this invention, which is defined as Multiple-Zone Pulsed-Field Gel Electrophoresis (MZPFGE), the electric field is set to different values in two or more spatially distinct regions of the gel. The difference in values may be related to time dependence, field amplitude or both.
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 7, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 7, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 7, 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.