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Expired Canadian patentCanada

Moment stability system for large vessels

CA 1211820 A · Owner: Drabouski, Stephen J. Jr. · Inventors: Drabouski, Stephen J. Jr.

CIPO record

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Abstract From the Canadian patent

An improved computerized moment stability system is provided which will rapidly obtain the solution to operational and post damage stability problems which may be present on an oceangoing vessel. The system includes three functional modules plus an initialization data base module. The data base modules stores the basic stability data concerning all watertight compartments and tanks onboard the vessel. An operational stability module is provided for performing the operational calculations to determine the stability parameters which exist under normal conditions. In addition, the operational module can provide reports concerning the day to day inventory of consumables as well as help in …

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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 September 23, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 23, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 8, 1984
GrantedSeptember 23, 1986
Term endedSeptember 23, 2003
Patent numberCA 1211820 A
Classification (IPC)B63B43/04 +1 more

Timeline

Timeline From CIPO dates

1985198719891991199319951997199920012003Application filedJune 8, 1984Patent grantedSep 23, 1986Term endedSep 23, 2003

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