Thermostable luciferases from photuris pennsylvanica and pyrophorus plagiophthalamus and methods of production
CA 2350823 A1 · Owner: Hall, Mary P. · Inventors: Hall, Mary P.; Wood, Keith V.; Gruber, Monika
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Luciferase enzymes with greatly increased thermostability e.g. at least half , lives of 2 hours at 50 ~C cDNAs encoding the novel luciferases, and hosts transformed to express the luciferases are disclosed. Methods of producing , the luciferases include recursive mutagenesis. The luciferases are used in conventional methods, some employing kits.
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 December 22, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 22, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 22, 2021.
- 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.