Sequential delivery of purified biological and chemical reagents
CA 2206602 C · Owner: Landegren, Ulf D. · Inventors: Burdick, Brent A.; Ramanujam, Rama P.; Landegren, Ulf D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and preparation for the storage and delivery of purified reagents is disclosed. In one aspect, the preparation comprises an amount of a first wax carrier, the first wax carrier having a first melting point and an amount of , a first reagent, wherein first reagent is a substantially purified preparation of at least one biological or chemical reagent. The first wax carrier and the first reagent are combined to form a solid first reagent portion. The solid mixture is combined with a second reagent portion comprised of at least one biological or chemical reagent in an inactive form.
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 November 29, 1995 and granted January 16, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 29, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 29, 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.