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Expired Canadian patentCanada

Method and device for excitation and selective dissociation by absorption of laser light

CA 1082128 A · Owner: Commissariat A L'Energie Atomique · Inventors: Rigny, Paul

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Abstract From the Canadian patent

Abstract of the Disclosure, In a method of excitation and selective dissociation by absorption of the monochromatic light emitted by a highpower laser, the laser light is sent at a frequency ?1 into an isotopic mixture of gaseous molecules in which a certain number of molecules exhibit transitions between two vibrational levels corresponding to a predetermined isotope and separated by an energy interval .DELTA.E1 = 2h?1. The molecules of a predetermined isotopic species are thus excited preferentially until subsequent dissociation into a number of constituents. -1-

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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 July 22, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 22, 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.
FiledNovember 9, 1976
GrantedJuly 22, 1980
Term endedJuly 22, 1997
Patent numberCA 1082128 A
Classification (IPC)B01D59/00 +1 more

Timeline

Timeline From CIPO dates

1977198019831986198919921995Application filedNov 9, 1976Patent grantedJuly 22, 1980Term endedJuly 22, 1997

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