Dual compartment container
CA 1288079 C · Owner: Taylor, Malcolm E. · Inventors: Pereira, Joseph J.; Taylor, Malcolm E.; Sawaf, Bernard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dual-compartment container for use with two substances which must be separated prior to use and which may be combined by the single step of removing the cap from the container. A top container containing one substance is sealed along its bottom end by a membrane and is rotatably seated within a bottom container containing another substance. A container cap seals the top container prior to use and is threaded onto the bottom container. The cap is provided with a ratchet means which causes common rotation of the cap and the top container while the cap is being unthreaded from the bottom container. An annular knife merger is interposed between the two containers and keyed to thetop container …
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 August 27, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 27, 2008.
- 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.