Blood sampling syringe
CA 1091117 A · Owner: Concord Laboratories, Inc. · Inventors: Raitto, Russell G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Improved disposable syringe for taking blood or other fluid samples, particularly arterial samples for blood gas testing or the like, which comprises a syringe body a, piston or plunger having a compressible end piece which forms a seal with the inner surface of the syringe body the sy-, ringe body preferably having no outward taper between the innermost reach of said compressible end piece and the location of said end piece when a sample of desired volume is drawn. The syringe has means which prevent contact between the compressible end piece and the end wall of the syringe and define its minimum volume, and the amount of friction between the end piece and the syringe wall is low enough …
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 December 9, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 9, 1997.
- 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.