Container with a unitary closure and method for making same
CA 2013908 C · Owner: Seaquist Closures · Inventors: Mueller, Bruce M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A container having a unitary hollow receptacle and closure is formed according to a process in which an injection molding step forms a preform of thermoplastic material having (1) a hollow body, (2) a closure base at one end of the hollow body to define an opening into the hollow body, and (3) a closure cover spaced from the closure base opening but connected to the closure base The process further includes blow molding the preform hollow body to form the hollow receptacle so that it extends from the closure base and has a configuration different than the preform hollow body.
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 April 5, 1990 and granted February 8, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 5, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 5, 2012.
- 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.