Large radius footed container
CA 2124230 C · Owner: Brunson, David A. · Inventors: Steward, Sterling L.; Kaufman, Paul R.; Brunson, David A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A plastic container is configured for, high pressure containment of fluid. The plastic container includes a tubular body portion generally symmetric about a vertical axis, and a base portion unitary with the body portion and having a plurality of feet for supporting the container upright on a horizontal surface. In cross-section, the base of the container is defined by a first line comprising a series of curves of serially diminishing radius from the body portion through the axis to each of the feet. The series of curves having centers of curvature alternating between positions inside the container and positions outside the 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
- Filed May 25, 1994 and granted July 8, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 25, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 25, 2016.
- 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.