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Expired Canadian patentCanada

Reinforced casting material

CA 1296258 C · Owner: Johnson & Johnson Products, Inc. · Inventors: Sun, Robert Li-Jiun; Kammerer, Gene William; Yoon, Hee Kyung

CIPO record

Overview

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

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Abstract From the Canadian patent

Abstract, A composition with reduced tack used to reinforce polyurethane casts is disclosed. The composition has controlled foaming activity and a viscosity between 100,000 and 1,000,000. The foaming activity and viscosity and reduced tack allow the formulation to be readily applied to the cast area that is to be reinforced. J&J-1213

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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 February 25, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 25, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 18, 1988
GrantedFebruary 25, 1992
Term endedFebruary 25, 2009
Patent numberCA 1296258 C
Classification (IPC)A61L15/10 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedJan 18, 1988Patent grantedFeb 25, 1992Term endedFeb 25, 2009

Sources & verification

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