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Expired Canadian patentCanada

Apparatus and method for highly efficient laundering of textiles

CA 1207159 A · Owner: The Procter & Gamble Company · Inventors: Spendel, Wolfgang U.

CIPO record

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Abstract From the Canadian patent

The present invention comprises apparatus and process for laundering textiles based upon utilizing quantities of an aqueous liquid wash liquor in the wash step ranging from at least, just, enough to be substantially evenly and completely distributed onto all portions of the textiles to, at most about 5 times the dry, weight of the textiles to be laundered. This results in an extremely efficient use of the detergent composition. The present invention also comprises novel wash liquor and detergent compositions for use in said apparatus and process.

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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 8, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 8, 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.
FiledNovember 8, 1982
GrantedJuly 8, 1986
Term endedJuly 8, 2003
Patent numberCA 1207159 A
Classification (IPC)D06F23/02 +2 more

Timeline

Timeline From CIPO dates

1983198619891992199519982001Application filedNov 8, 1982Patent grantedJuly 8, 1986Term endedJuly 8, 2003

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