Biologically active lipoprotein and its use
CA 2000893 C · Owner: Pharmacia & Upjohn Aktiebolag · Inventors: Robertsson, Bengt; Curstedt, Tore; Lowenadler, Bjorn
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A lipoprotein possessing pulmonary surfactant activity comprising an alveolar polypeptide or protein and covalently, bound thereto, one or two fatty acid residue(s); a pharmaceutical composition comprising such lipoprotein and a phospholipid type of material; and a method of facilitating respiration in mammals including man, comprising administering an effective amount of such a lipoprotein or pharmaceutical composition to the respiratory tract of a patient subject to respiratory disorder so as to reduce surface tension at the air-liquid interface of the patient's alveoli.
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 October 17, 1989 and granted August 8, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 17, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 17, 2011.
- 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.