Patent Yard Sign in
Expired Canadian patentCanada

Sterilization process using a heat effect additive

CA 1134591 A · Owner: Laboratoires Pharmascience · Inventors: Grenier, Georges; Cerf, Olivier; Rancurel, Alain

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

The invention relates to sterilization. It deals with a process of sterilization or decontamination of apparatus, characterised in that an aqueous solution containing at least 0.01% of a compound of the formuls, in which R represents a C5-C14 n-alkyl radical in the form of the base or a salt thereof, is applied to the apparatus at a temperature in the range of 30 to 120°C at atmospheric pressure. The process is suitable in particular for the sterilization of milk processing circulation equipment.

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 2, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 2, 1999.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 8, 1980
GrantedNovember 2, 1982
Term endedNovember 2, 1999
Patent numberCA 1134591 A
Classification (IPC)A61L2/00 +2 more

Timeline

Timeline From CIPO dates

1981198319851987198919911993199519971999Application filedMay 8, 1980Patent grantedNov 2, 1982Term endedNov 2, 1999

Sources & verification

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