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Expired Canadian patentCanada

Thermoplastic fibers, particularly glass fibers, fabrication process and apparatus

CA 1303356 C · Owner: Schulz, Dietrich · Inventors: Schulz, Dietrich; Gartner, Hans

CIPO record

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

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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 June 16, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 16, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 10, 1986
GrantedJune 16, 1992
Term endedJune 16, 2009
Patent numberCA 1303356 C
Classification (IPC)C03B37/04

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedOct 10, 1986Patent grantedJune 16, 1992Term endedJune 16, 2009

Sources & verification

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