Shrinkable packing film
CA 2209362 A1 · Owner: Huang, Fu-Chuan · Inventors: Huang, Fu-Chuan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A shrinkable packing film defining two ends is provided. One of the ends is attached to the inner surface of the packing film to define a first receiving space therein. The other end of the packing film is attached to the outer surface of the packing film such that a second receiving space is defined therein. The first and second receiving spaces are divided by part of the packing film. The first and second receiving spaces can be designed to have identical or different sizes.
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 June 30, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 30, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 30, 2019.
- 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.