Patent Yard Sign in
Expired Canadian patentCanada

Closure for flexible containers

CA 1188267 A · Owner: Kronenberg, Kurt · Inventors: Kronenberg, Kurt

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

A closure for flexible containers made of hose- or sack-shaped semi-finished products for transporting and storing of flowable or pourable goods, with several rod-shaped or tubular clamps which are arranged one upon another in side supports and securable in their position to each other and through their separation places one end of the hose- or sack-shaped semi-finished product can be led. In order that the closure can also withstand strong jolt stresses on the filled containers, the clamps are arranged displaceable with respect to one another in the supports surrounding their ends and clampable with respect to each other, having one clamping device each which can be inserted into each …

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 June 4, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 4, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 3, 1981
GrantedJune 4, 1985
Term endedJune 4, 2002
Patent numberCA 1188267 A
Classification (IPC)B65D77/10 +2 more

Timeline

Timeline From CIPO dates

1982198519881991199419972000Application filedFeb 3, 1981Patent grantedJune 4, 1985Term endedJune 4, 2002

Sources & verification

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