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Expired Canadian patentCanada

Device, apparatus and process for dispensing taped bags

CA 1082141 A · Owner: W.R. Grace & Co.-Conn. · Inventors: Owen, Dave L.; Morris, Alfred R.; Howe, Milton A. Jr.

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

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Abstract From the Canadian patent

Abstract of the Disclosure, A device useful for dispensing taped bags includes spaced apart rotatably mounted carriers a surface therebetween, to wind up at least one tape and a clutch assembly for, unidirectional rotation of the wind up surface. In various embodiments, the device further includes a variety of features which facilitate removal of wound up tape such as a spring, which is compressible to provide a clearance a pin to permit, rotation of the wind up surface away from a carrier plate use of, spaced apart flexible rods as the surface whereby the free ends of the rods may be compressed to reduce the surface perimeter and forming the surface of low friction material. The device is …

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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.
FiledOctober 31, 1978
GrantedJuly 22, 1980
Term endedJuly 22, 1997
Patent numberCA 1082141 A
Classification (IPC)B65D73/02

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedOct 31, 1978Patent 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.