Patent Yard Sign in
Expired Canadian patentCanada

Device facilitating filling and unfolding of bag within outer casing

CA 1293933 C · Owner: Maple, Peter Mark · Inventors: Graves, Stewart Maurice; Peet, Adrian Philip; Maple, Peter Mark

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

Figs 1 & 3), DEVICE FACILITATING FILLING AND UNFOLDING OF BAG WITHIN OUTER CASING, A cartridge is provided in the form of a sheet of material having swingable flaps extending from opposing side regions. A folded bag which is to be filled with fluid, is positioned on the sheet and attached to the flaps, and the flaps are folded thereover in the initial position. In use, the cartridge is placed in a casing and, upon filling, the bag expands in a controlled manner and pushes back the flaps.

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 January 7, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 7, 2009.
  • 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 12, 1988
GrantedJanuary 7, 1992
Term endedJanuary 7, 2009
Patent numberCA 1293933 C
Classification (IPC)B65D88/20

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedFeb 12, 1988Patent grantedJan 7, 1992Term endedJan 7, 2009

Sources & verification

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