Patent Yard Sign in
Expired Canadian patentCanada

Trouble lamp and retainer

CA 1237110 A · Owner: Maddock, William H. · Inventors: Bobrovniczky, Bert; Maddock, William H.

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 retainer for a trouble lamp having an elongated handle comprises a holder including a pair of spaced apart jaws connected at one axial end thereof by a bight portion. The jaws are configured to provide a first pair of axially aligned bearing surfaces and a second pair of transversely aligned bearing surfaces communicating with the first pair of bearing surfaces for receiving the handle of the trouble lamp therebetween in either an axially aligned or a traversely aligned position. A journal connects the bight of the holder to a clamp member for relative axial rotation therewith.

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 May 24, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 24, 2005.
  • 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 5, 1985
GrantedMay 24, 1988
Term endedMay 24, 2005
Patent numberCA 1237110 A
Classification (IPC)A47B96/06

Timeline

Timeline From CIPO dates

1986198819901992199419961998200020022004Application filedNov 5, 1985Patent grantedMay 24, 1988Term endedMay 24, 2005

Sources & verification

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