Transgenic fibrinogen
CA 2183546 C · Owner: Drohan, William N. · Inventors: Johnson, John L.; Drohan, William N.; Lord, Susan T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Transgenic non-human animals, capable of expressing a heterologous gene for human or other recombinant fibrinogen protein or subunit chain polypeptides thereof or modified fibrinogens in mammary glands of the animals and secreting the expressed product into a body fluid, are provided, as are methods of producing recombinant fibrinogens subunit chains polypeptides thereof and modified fibrinogens and fibrinogens fusion proteins in such animals.
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
- Filed February 17, 1995 and granted August 21, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 17, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 17, 2017.
- 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.