Stabilised preparation
CA 1112193 A · Owner: Wellcome Foundation Limited (The) · Inventors: Krenitsky, Thomas A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Thymidine phosphorylase counteracts antagonists to antifolate agents in media used for testing the susceptibility of bacteria to anti-folate antimicrobial agents. A solution of thymidine phosphorylase may be stabilised by addition of inorganic phosphate and uracil the, stabilisation being most effective at pH7. Furthermore bovine serum albumin as added to prevent loss of enzymic activity on filtration. The solution may be kept sterile by addition of sodium or potassium azide.
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 November 10, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 10, 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.
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.