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Expired Canadian patentCanada

Apparatus for separating gaseous isotopes

CA 1202574 A · Owner: Nustep Trenndusen Entwicklungs- Und Patentverwertungsgesellschaft · Inventors: Grosstuck, Werner; Schafer, Rainer

CIPO record

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

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Abstract From the Canadian patent

A separating element for gaseous isotopes into two fractions, and consisting of several elongated separating chips with a row of entry openings for the process gas at one side of the chips and a row of exit openings for the heavy fraction at the other side of the chips with exit, openings for the light fraction at the edges of the chips and of two tubes holding the chips and having at least one chamber, with said tubes being connected by means of connecting elements, and equipped with entry and exit openings on their contact surfaces, with said entry and exit openings arranged in rows in a longitudinal direction of the chips, and for simplifying of installation and construction this …

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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 April 1, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 1, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 20, 1983
GrantedApril 1, 1986
Term endedApril 1, 2003
Patent numberCA 1202574 A
Classification (IPC)B01D59/14 +1 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedJuly 20, 1983Patent grantedApril 1, 1986Term endedApril 1, 2003

Sources & verification

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