Patent Yard Sign in
Expired Canadian patentCanada

Segmented transition coupling

CA 1318930 C · Owner: Victaulic Company Of America · Inventors: Weston, Richard Robert

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

Coupling segments of a segmented pipe coupling have dissimilar ends that are interfittable with ends of an identical said coupling segment in only one specific orientation of said coupling segments, and which are antagonistic to the interfitting of said ends of said coupling segments in all other positions of orientation of said coupling segments.

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 8, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 8, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 21, 1989
GrantedJune 8, 1993
Term endedJune 8, 2010
Patent numberCA 1318930 C
Classification (IPC)F16L17/00 +1 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedSep 21, 1989Patent grantedJune 8, 1993Term endedJune 8, 2010

Sources & verification

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