Articles formed of multilayered film having antifog properties
CA 2133777 A1 · Owner: Nagata, Harry · Inventors: Nagata, Harry
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Thermoplastic multilayer film for use as greenhouse film and perishable fruits and vegetable product bags comprising a first layer of nylon and at least a second layer comprising a polyolefin. The nylon layer has a surface innermost of the greenhouse when the film is position on the greenhouse and innermost of the bag. The film in these utilities provides advantageous extended anti-fog properties.
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 October 6, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 6, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 6, 2016.
- 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.