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Expired Canadian patentCanada

Process for filling and sealing vessels with a non locking mating

CA 1295246 C · Owner: Warner-Lambert Company · Inventors: Wittwer, Fritz; Thoma, Markus

CIPO record

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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 of the Disclosure:, A process for filling and sealing vessels with a nonlocking mating which have been produced by pressure molding and preferably injection molding natural starch or other hydrophilic materials, or a mixture of compounds of this nature, and which comprise a container part and a closure part, said vessels being, in particular vessels, of the shape of pharmaceutical capsules in which process a) the product constituting the filling is introduced into a vessel of the abovementioned type this, vessel being snap-lock free, b) a sealing liquid is brought into contact either with the whole of that mating area of the closure part which touches the mating area of 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 February 4, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 4, 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.
FiledMarch 4, 1987
GrantedFebruary 4, 1992
Term endedFebruary 4, 2009
Patent numberCA 1295246 C
Classification (IPC)A61J3/07 +2 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedMarch 4, 1987Patent grantedFeb 4, 1992Term endedFeb 4, 2009

Sources & verification

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