Container for holding food products
CA 2060135 A1 · Owner: Lang, Guenter · Inventors: Lang, Guenter; Lang, Guenter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
LaO3 G. Lang, Cup, S u m m a r y, Container for holding food products Container (1, 21) for holding liquid and/or solid food products at least during consumption, where the walls of the container (1 21), consist of at least three layers made from a material that is edible and/or rots; it is particularly favourable if the outer layer (2 22), is made from a comparatively strong solid material, while the middle, layer (3 23) consists of a material that either does not harden or only hardens to a minimal extent and that is largely resistant to liquids. Fig. 1
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 January 28, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 28, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 28, 2014.
- 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.