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Expired Canadian patentCanada

Purified antineoplaston fractions and methods of treating neoplastic disease

CA 1188218 A · Owner: Burzynski, Stanislaw R. · Inventors: Burzynski, Stanislaw R.

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

Disclosed is a pharmaceutical composition for inhibiting growth of neoplastic cells in a host having neoplastic disease which composition contains as an active ingredient a growth inhibiting substance having at least one small-size peptide chemical structure having 2 to 9 amino acid residues which, substance occurs as an antineoplastic ingredient in urine and has a molecular weight of less than 2,000 or pharmaceuti-, cally acceptable addition salts thereof. The invention also pertains to a process of obtaining from a volume of urine a fraction having antineoplastic activity comprising: separating, from the urine matter having a molecular weight greater than 5,000; fractionating the urine to …

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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 June 4, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 4, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 26, 1982
GrantedJune 4, 1985
Term endedJune 4, 2002
Patent numberCA 1188218 A
Classification (IPC)A61K35/22 +2 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedMay 26, 1982Patent grantedJune 4, 1985Term endedJune 4, 2002

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