Substance containment apparatus and method
CA 2124832 C · Owner: Holley, James W. · Inventors: Holley, James W.; Kajita, Kirk B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A multi-channel bottle (310) includes an opening (315) surrounded by a flange (316) which has a spherical inner surface formed to receive a hollow member (320). The hollow member (320) includes a: lower opening (325) and an upper opening (326). The housing (330) is adjustable to bias the hollow member (320) against the spherical inner surface of the flange (316) to seal, around the opening (315). When closed a portion (321) of the hollow member, (320) blocks the opening (315). When open the hollow member (320) is in an, upright position such that the opening (315) of the bottle (310) and the lower opening (325) of the hollow member (320) are aligned. A method for mixing two substances …
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 4, 1992 and granted August 25, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 4, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 4, 2014.
- 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.