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Expired Canadian patentCanada

Process for preparing organic solvent soluble amine molybdates

CA 1208654 A · Owner: Goodrich (B.F.) Company (The) · Inventors: Magistro, Angelo J.; Kroenke, William J.

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

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Abstract From the Canadian patent

Amine molybdates are formed by reacting an amine with a molybdenum compound in a reaction mixture comprised of at least two immiscible liquid materials one of which is an aqueous phase and another of which is a volatile organic solvent in which the amine molybdate to be formed is readily soluble; an inorganic or organic acid desirably is added to the reaction mixture; in this way the amine molybdate is recovered in an organic solvent; in prior processes involving aqueous media the amine molybdates are difficult to separate from the aqueous phase, difficult to purify and difficult to handle; amine molybdates are effective smoke retardant additives for vinyl and vinylidene chloride polymer …

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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 July 29, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 29, 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.
FiledJuly 14, 1983
GrantedJuly 29, 1986
Term endedJuly 29, 2003
Patent numberCA 1208654 A
Classification (IPC)C07F11/00

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedJuly 14, 1983Patent grantedJuly 29, 1986Term endedJuly 29, 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.