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Expired Canadian patentCanada

Micro-titer plate with immunologic solid carrier having neck piece of smaller cross section

CA 1098441 A · Owner: Immuno Aktiengesellschaft Fur Chemisch-Medizinische Produkte · Inventors: Aicher, Helmut; Eibl, Johann

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

An apparatus for carrying out a radioimmunological method of determining antigens or antibodies comprising a micro-titerplate and solid carriers in the form of elongated plate-like elements, a holding band being provided to which said elongated plate-like elements are secured; a neck piece of smaller cross section than the elongated element is provided between the holding band and each elongated element to form pre-determined breaking points.

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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 March 31, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 31, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 19, 1977
GrantedMarch 31, 1981
Term endedMarch 31, 1998
Patent numberCA 1098441 A
Classification (IPC)G01N23/00 +1 more

Timeline

Timeline From CIPO dates

1978198119841987199019931996Application filedAug 19, 1977Patent grantedMarch 31, 1981Term endedMarch 31, 1998

Sources & verification

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