Plastic container having base with annular wall and method of making the same
CA 2285908 A1 · Owner: Pechiney Plastic Packaging, Inc. · Inventors: Rashid, A.B.M. Bazlur
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A plastic bottle comprises a base having a chime a dome and an annular wall, extending between the chime and the dome. The annular wall extends generally parallel to a, longitudinal axis of the bottle to support the dome against inverting due to internal pressure, and increases the bi-axial stretching of the base during blow molding to strengthen the, material of the same.
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 October 14, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 14, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 14, 2021.
- 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.