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Expired Canadian patentCanada

Roller for glue applying folding machines

CA 1278801 C · Owner: Moll, Richard J. · Inventors: Moll, Richard J.

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

A roller for glue applying folding machines is disclosed which grips paper sheets to be advanced for folding, and which sheets have had one or more lines of glue applied thereto, which roller includes a plurality of spaceable segmented roller elements detachably secured to a metal shaft, which elements have a resilient outer layer bonded thereto with an end to end helical groove, providing for advancing the paper sheets, and which grooves expel debris picked up from the surfaces of the advanced paper sheets.

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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 January 8, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 8, 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.
FiledNovember 17, 1986
GrantedJanuary 8, 1991
Term endedJanuary 8, 2008
Patent numberCA 1278801 C
Classification (IPC)B05C1/00 +1 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedNov 17, 1986Patent grantedJan 8, 1991Term endedJan 8, 2008

Sources & verification

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