Expandable bag
CA 1265480 C · Owner: Matyja, Krzysztok · Inventors: Matyja, Krzysztok
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A flexible bag having a tapered body portion with a closed bottom narrower than a top thereof. The bag has a handle portion and a folding portion coupling the body portion to the handle portion. The handle portion includes two handle halves separable to open the bag. The bag is movable from a flat position in which the folding portion is folded to an expanded unfolded position in response to the weight of objects to be carried.
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 February 6, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 6, 2007.
- 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.