Patent Yard Sign in
Expired Canadian patentCanada

Marine propulsion device with thru-transom engine oil drain system

CA 1333678 C · Owner: Meisenburg, Gary L. · Inventors: Meisenburg, Gary L.

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 fluid flow tube (9) is provided which extends from the lower portion of the engine oil pan (7) to a point on the boat transom (2) below the pan. The upper end portion of the tube is connected through a control valve (10) which communicates with the pan interior. The lower or discharge tube end portion is connected through a fitting (11) extending through the transom. A removable plug (17) is associated with the fitting and, when removed permits oil to, drain out through the transom and into an oil collection receptacle when the control valve is open.

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 December 27, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 27, 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.
FiledSeptember 29, 1989
GrantedDecember 27, 1994
Term endedDecember 27, 2011
Patent numberCA 1333678 C
Classification (IPC)B63H21/38 +1 more

Timeline

Timeline From CIPO dates

19901993199619992002200520082011Application filedSep 29, 1989Patent grantedDec 27, 1994Term endedDec 27, 2011

Sources & verification

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