Process and apparatus for producing sterilised and bacteria-free water suitable for medicinal injection preparations and other technical purposes
CA 1096517 A · Owner: Blutspendedienst Der Landesverbande Des Deutschen Roten Kreuzes Niedersachsen Oldenburg Und Bremen G.G.M.B.H. · Inventors: Ahrens, Ulrich
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process and apparatus for obtaining sterilised and bacteria-free water suitable for medicinal injections and other purposes is disclosed in which deionised water is supplied to a reverse osmosis filter to obtain a permeate and a portion of the deionised water supplied to the filter is recycled. The recycled portion of deionised water may be recycled through a deionisation plant from which it is derived or through a closed circuit and may be recycled in combination with the permeate.
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 February 24, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 24, 1998.
- 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.