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Expired Canadian patentCanada

Dental application fluid for the inspection of tooth contacts and prosthetic works

CA 1288541 C · Owner: Hansen, Jens M. · Inventors: Hansen, Jens M.

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

There is disclosed a dental application fluid for prosthetic work that is a directly applicable fluid which, in, contrast to known silicon-based compounds requires no prior, preparation by means of a catalyst. The product is non-viscous and may be applied and distributed without difficulty by means of forceps and a ball of cotton. The application fluid drys fast; the drying time equals only about 5 to 10 seconds and can even be shortened with the use of a hand blower. The application fluid adheres to all materials which are used in the dental profession including tooth materials. The application fluid thereby allows an unusually exact determination of pressure and contact points. The …

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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 3, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 3, 2008.
  • 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 30, 1986
GrantedSeptember 3, 1991
Term endedSeptember 3, 2008
Patent numberCA 1288541 C
Classification (IPC)A61K6/25

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedJune 30, 1986Patent grantedSep 3, 1991Term endedSep 3, 2008

Sources & verification

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