Tube with tamperproof closure and process for making
CA 2063554 C · Owner: Hoffmann Neopac Ag · Inventors: Butterbrodt, Gerhard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a tube and a process of producing a tamperproof closure on a tube for a liquid pasty or, powdery material, especially a pharmaceutical agent. The tube includes a neck with a delivery opening and a breakoff neck projection molded onto the neck and closing the delivery opening off, which breakoff neck projection engages, positively or non-positively, a cap applied onto the breakoff neck, which cap includes an opening having a rim. After the tube has been filled and closed off a, section of the breakoff neck projection or a projection formed thereon is inserted through the opening of the cap and is thereafter deformed to produce an engaging flange extending over the rim of the …
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 July 13, 1990 and granted September 17, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 13, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 13, 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.