Patent Yard Sign in
Expired Canadian patentCanada

Aircraft de-icing and anti-icing composition

CA 1331084 C · Owner: Ma, Frank · Inventors: Ma, Frank; Comeau, 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 composition is described which consists of a microemulsion of oil in a water/glycol solution and containing certain thickening agents, emulsifiers carboxylic acids having, from 10 to 18 carbon atoms and alkanolamines to provide the desirable viscosity and shear stability needed to give a composition having effective de-icer and anti-icing properties.

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 August 2, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 2, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 28, 1986
GrantedAugust 2, 1994
Term endedAugust 2, 2011
Patent numberCA 1331084 C
Classification (IPC)C09K3/18

Timeline

Timeline From CIPO dates

198719901993199619992002200520082011Application filedAug 28, 1986Patent grantedAug 2, 1994Term endedAug 2, 2011

Sources & verification

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