Patent Yard Sign in
Expired Canadian patentCanada

Storage vault and method

CA 1330264 C · Owner: Lindquist, Thomas R. · Inventors: Lindquist, Thomas R.; Bambicigno, Ralph

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 method for the above-ground storage of a flammable, potentially ground-water polluting liquid on a support surface is disclosed comprising the initial step of containing the flammable liquid within an inner tank. The inner tank is encased within a layer of concrete to create a dual walled container that is a chosen distance above the support surface to create a visual leak inspection region between the dual walled container and the support surface. A storage vault capable of storing liquid according to the foregoing method is also disclosed.

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 June 21, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 21, 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.
FiledNovember 30, 1987
GrantedJune 21, 1994
Term endedJune 21, 2011
Patent numberCA 1330264 C
Classification (IPC)E04B1/32

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedNov 30, 1987Patent grantedJune 21, 1994Term endedJune 21, 2011

Sources & verification

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