Biolistic apparatus for delivering substances into cells and tissues
CA 2248622 A1 · Owner: Loomis, Dale · Inventors: Loomis, Dale; Celeste, Joe; Sanford, John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A biolistic apparatus is provided with a housing having a carrier membrane disposed in a chamber for movement relative to an outlet plate having a plurality of apertures therein. The carrier membrane has a plurality of micro-particles adhered thereto on the surface of the membrane adjacent the apertures for delivery into cells or tissue. A plurality of rupturable membranes are mounted in spaced relation to the carrier membrane. Initially, a vacuum is provided within the assembly including the outlet opening to purge the apparatus of any undesirable gasses. High pressure helium is then delivered to the rupturable membranes and upon reaching a predetermined pressure, will cause the membranes …
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 September 23, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 23, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 23, 2020.
- 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.