Closure for containers
CA 1314501 C · Owner: Duma Ab · Inventors: Sondal, Sven
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A b s t r a c t, A container closure formed in its closed state of a springy, elastomeric plastic, to be snapped onto the neck of a container with a ring-shaped retaining portion . The retaining portion is connected via a hinge to a re-closable lid . A tear-off strip is formed in the join between the lid and the retaining portion in the area opposite the hinge . The strip ' is defined by scoring to diminish its strength. A seal is provided in the join between the lid and the retaining portion , in the circumferential sections between the hinge and the ends of the tear-off member , said seal being in the form of material bridges spaced around the circumference of the closure. The tear-off …
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 March 16, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 16, 2010.
- 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.