Patent Yard Sign in
Expired Canadian patentCanada

Film laminate with gas barrier for sterile flexible containers

CA 1256788 A · Owner: Baxter Travenol Laboratories, Inc. · Inventors: Hori, Yasuhiko; Imano, Shigeki; Webster, R. Daniel

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 film laminate 10 for flexible containers 26 capable of containing a product to be maintained and removed under sterile conditions. The film laminate having an outside layer 12 of linear low density polyethylene, a gas barrier layer 16, a core layer 20 of polyamide, and an inside layer 24 of linear low density polyethylene. The layers being bonded together by a polyurethane adhesive 14 18 and 22.

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 July 4, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 4, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 27, 1985
GrantedJuly 4, 1989
Term endedJuly 4, 2006
Patent numberCA 1256788 A
Classification (IPC)B32B27/08 +2 more

Timeline

Timeline From CIPO dates

1986198919921995199820012004Application filedSep 27, 1985Patent grantedJuly 4, 1989Term endedJuly 4, 2006

Sources & verification

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