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Expired Canadian patentCanada

Multiwavelength laser source

CA 1291254 C · Owner: Brown, Stuart I. · Inventors: Brown, Stuart I.; Bille, Josef F.

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 multiwavelength laser source for providing a plurality of pulsed laser beams comprises a plurality of laser diodes optically connected with an oscillator to establish a beam of pulses of monochromatic light. A dispersion line for spreading wavelengths in each pulse optically connects the oscillator to a regenerative amplifier. An electro-optical crystal in the regenerative amplifier establishes the repetition rate of pulses in the laser beam and a pulse compressor is optically connected to the regenerative amplifier to establish the duration of each pulse. The laser source may also include a frequency doubler which is optically connected to the output of the pulse compressor to split the …

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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 October 22, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 22, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 27, 1988
GrantedOctober 22, 1991
Term endedOctober 22, 2008
Patent numberCA 1291254 C
Classification (IPC)H01S3/10 +2 more

Timeline

Timeline From CIPO dates

1989199119931995199719992001200320052007Application filedSep 27, 1988Patent grantedOct 22, 1991Term endedOct 22, 2008

Sources & verification

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