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Expired Canadian patentCanada

Offshore launching system

CA 2000645 C · Owner: Keller, Robert A. · Inventors: Mcnease, Daniel F.; Palmer, Charles Robert; Keller, Robert A.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A jack-up type of offshore oil-drilling platform is adapted for rocket launching, wherein the rocket is assembled on a mobile launch pad in a protected on-shore facility then loaded onto the floating jack-up barge for transport to a launch site miles offshore. The barge is jacked up to create a stable, sea-bottom supported structure; a particular feature is the used of a moveable cantilever structure on which the rocket and its supporting pad are loaded while in the on-shore facility then this structure is moved to a, central location on the barge the barge is floated, and the floating barge is towed to the launch site. At the launch site the structure is moved back to a cantilevered …

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.

Why it's free to use

  • Filed October 13, 1989 and granted August 18, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 13, 2009.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 13, 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.
FiledOctober 13, 1989
GrantedAugust 18, 1998
Term endedOctober 13, 2009
Patent numberCA 2000645 C
Classification (IPC)F41F3/04

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedOct 13, 1989Patent grantedAug 18, 1998Term endedOct 13, 2009

Sources & verification

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