Radionuclide labeled starch granules as organ imaging agents
CA 1059903 A · Owner: The Procter And Gamble Company · Inventors: Tofe, Andrew J.; Kretschmar, Herbert C.; Hartman, Frederick A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Frederick A. Hartman Herbert C. Kretschmar, and, Andrew J. Tofe ABSTRACT OF THE DISCLOSURE, Physiologically acceptable particulate radionuclide carriers comprising a reducing agent bound to an anionic starch derivative, useful in the preparation of organ-specific diagnostic radiopharmaceuticals.
Read the whole patent
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 August 7, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 7, 1996.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.