Bottom structures for plastic containers
CA 1056318 A · Owner: Continental Can Company · Inventors: Das, Salil K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved bottom structure for plastic bottles of the type suitable for containing carbonated beverages. The outer surface of the bottom structure is formed with a central concave dome portion and a number of radial foot portions extending axially outwardly. The radial profile of each foot portion is a curve which merges with the dome portion and with the side wall of the container and which comprises a plurality of tangential arcs in series.
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 June 12, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 12, 1996.
- 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.