Canadian application, no grantCanada
Graphite nonwovens as functional layers in diagnostic test kits
CA 2197386 A1 · Owner: Hildenbrand, Karlheinz · Inventors: Hildenbrand, Karlheinz
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 the use of graphite nonwovens and graphite woven fabrics for removing cellular constituents from blood and corresponding test agents for analysis of blood constituents.
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 February 12, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 12, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 12, 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.
FiledFebruary 12, 1997
GrantedNo grant recorded
Term endedFebruary 12, 2017
Patent numberCA 2197386 A1
Classification (IPC)G01N33/53 +2 more
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.