Low reflective films
CA 2334603 A1 · Owner: Port, Anthony B. · Inventors: Enniss, James P.; Ward, Richard J.; Barth, Steven A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An anti-reflective film comprising a transparent polymeric film substrate coated with at least two polymeric layers the two layers being an exposed , outer polymeric layer comprising a fluorine containing polymer having a refractive-index not greater than 1.45 and immediately adjacent thereto an inner metallic compounds containing polymeric layer having a refractive index of at least 1.6, adjacent the exposed outer layer.
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 9, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 9, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 9, 2021.
- 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.