Patent Yard Sign in
Expired Canadian patentCanada

Non-edible, reinforced amylose and amylose starch food casings

CA 1247925 A · Owner: Teepak, Inc. · Inventors: Bridgeford, Douglas J.

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

Amylose and high amylose starch fibrous food wrappings including casings for meat products provide a low cost alternative to ordinary fibrous casings. The composite material consists of a cross-linked matrix of the amylose polymer coupled or bonded with the reinforcement and possesses a wet strength and elongation properties for suitable handling and stuffing without exhibiting embrittlement upon aging.

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 3, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 3, 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.
FiledOctober 3, 1985
GrantedJanuary 3, 1989
Term endedJanuary 3, 2006
Patent numberCA 1247925 A
Classification (IPC)A22C13/00

Timeline

Timeline From CIPO dates

1986198919921995199820012004Application filedOct 3, 1985Patent grantedJan 3, 1989Term endedJan 3, 2006

Sources & verification

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