Patent Yard Sign in
Expired Canadian patentCanada

Cam activated anti-dog ear device

CA 1212703 A · Owner: Rockwell International Corporation · Inventors: Skipor, Eugene, Jr.; Niemiro, Josef W.

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

Abstract of the disclosure, This invention provides an apparatus for quarter folding sheet products such as newspapers and the like which inncludes a pair of cooperating fold rolls a sheet, supporting surface above the fold rolls a rotatable cage, assembly carrying a tucker blade that tucks a sheet into the nip of the fold rolls during each revolution of the fold rolls, presser means for exerting a force against one group of the ends of the product being folded and means operating said presser means in timed relationship with the tucking of a sheet product into the fold rolls.

Read the whole patent

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 14, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 14, 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.
FiledDecember 20, 1983
GrantedOctober 14, 1986
Term endedOctober 14, 2003
Patent numberCA 1212703 A
Classification (IPC)B65H45/18 +1 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedDec 20, 1983Patent grantedOct 14, 1986Term endedOct 14, 2003

Sources & verification

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