Patent Yard Sign in
Expired Canadian patentCanada

Apparatus for applying bag closures

CA 1113054 A · Owner: Lieberman, Abraham B. · Inventors: Lieberman, Abraham B.

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

Apparatus and method for applying closure clips to filled bags. Pleating of bag material is by two sets of intermeshing gears which pleat and position the bag material within a clip held adjacent the gear sets. After filling the clip is dislodged from position by a pin or projection carried by one of the gear sets.

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 November 24, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 24, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 20, 1979
GrantedNovember 24, 1981
Term endedNovember 24, 1998
Patent numberCA 1113054 A
Classification (IPC)B65B7/00 +2 more

Timeline

Timeline From CIPO dates

1980198219841986198819901992199419961998Application filedJune 20, 1979Patent grantedNov 24, 1981Term endedNov 24, 1998

Sources & verification

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