Patent Yard Sign in
Expired Canadian patentCanada

Vapor delivery pressure test adapter

CA 1294797 C · Owner: Blocker, William C. · Inventors: Blocker, William C.

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 vapor delivery pressure test adapter for integral installation at the outlet of a vapor delivery pressure regulator within a self-contained vapor delivery system comprising a vapor pipe nipple compatible with such system, with vapor filter means internally and fixedly mounted within the nipple, and delivery pressure test adapter means externally and piercingly mounted to the nipple to permit intermittent external measurement of vapor delivery pressure within the system.

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 28, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 28, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 16, 1987
GrantedJanuary 28, 1992
Term endedJanuary 28, 2009
Patent numberCA 1294797 C
Classification (IPC)B01D46/00 +2 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedApril 16, 1987Patent grantedJan 28, 1992Term endedJan 28, 2009

Sources & verification

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