Water-permeable controlled atmosphere packaging device from cellophane and microporous film
CA 1331968 C · Owner: Hercules Incorporated · Inventors: Antoon, Mitchell Kelly Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a container for the storage in a controlled atmosphere of fresh produce (fruit, vegetables or flowers), that is constructed of substantially gas-impermeable walls having a gas-permeable panel that permits controlled flows of CO2 and O2 into and out of the container and a panel composed of cellophane that is permeable to moisture and substantially impermeable to the flow of O2 and CO2 to, enhance retention of freshness of the produce while controlling the moisture concentration in the container.
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 September 13, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 13, 2011.
- 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.