Patent Yard Sign in
Expired Canadian patentCanada

Compact plasma separator and an apparatus containing the same

CA 1325175 C · Owner: Hagihara, Takeaki · Inventors: Hagihara, Takeaki; Aoki, Satoshi

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

A compact plasma separator comprises a casing provided with a blood introduction means, a blood withdrawal means and at least one opening for plasma withdrawal. A bundle of porous hollow fibers is disposed in the casing and fluid-tightly connected at end portions thereof to the blood introduction means and the blood withdrawal means. The porous hollow fibers have an average effective length not greater than 200 mm and a membrane surface area not greater than 0.3 m2, and the average effective length (L mm) satisfies the following relationship: L/D2 (mm-1) ? 2000, in which D represents an average inner diameter of the porous hollow fibers. The compact plasma separator can easily be …

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 14, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 14, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 25, 1989
GrantedDecember 14, 1993
Term endedDecember 14, 2010
Patent numberCA 1325175 C
Classification (IPC)B01D63/02 +1 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedMay 25, 1989Patent grantedDec 14, 1993Term endedDec 14, 2010

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.