Double chambered container
CA 2327064 A1 · Owner: Betras, Joe · Inventors: Betras, Joe
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is generally directed to a container having first and second hollow chambers attached to a top. The first chamber has a helical surface that can be placed adjacent to a corresponding helical surface of the second chamber. The top can include a pair of apertures for receiving a straw such that one aperture resides above each chamber. A straw can be placed into one of the apertures when one desires to drink from the container. The drinking container can further include an attachment device for better attaching the helical chambers.
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, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 29, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 29, 2022.
- 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.