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Expired Canadian patentCanada

Method of and apparatus for the separation of isotopes

CA 1045581 A · Owner: Trw Inc. · Inventors: Dawson, John M.

CIPO record

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Abstract From the Canadian patent

This invention relates generally to the separation of isotopes from each other. Presently, the principal means for separating uranium isotopes on a commercial basis is the gaseous diffusion process. In order to increase the capacity of such diffusion plants a heavy capit?l investment is required which may be on the order of many hundred million dollars per year. The present invention provides methods and apparatuses for separating isotopes which are substantially less expensive than those of the prior art yet producing a high yield and is applicable to many elements having more than one isotope. According to the invention initially a neutral plasma is pre-, pared including the element in …

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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 January 2, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 2, 1996.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedJanuary 2, 1979
Term endedJanuary 2, 1996
Patent numberCA 1045581 A
Classification (IPC)B01D59/48 +2 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedJan 2, 1979Term endedJan 2, 1996

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