Expired Canadian patentCanada
Piping bag, blank for manufacturing a piping bag and method of manufacturing a piping bag
CA 2568448 C · Owner: Ejeblad, Allan · Inventors: Ejeblad, Allan
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A disposed piping bag (1) comprises a container of polymer film. The piping bag is formed essentially from a thin-walled polymer tube and an outwardly , oriented surface of the piping bag has a surface structure.
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 February 4, 2005 and granted July 23, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 4, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 4, 2005
GrantedJuly 23, 2013
Term endedFebruary 4, 2025
Patent numberCA 2568448 C
Classification (IPC)A23G3/28
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.