Method and apparatus for providing antistatic protection to plastic lenses
CA 2005519 A1 · Owner: Ford Motor Company · Inventors: Plate, Richard W.; Gresser, Mark J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
26-, Abstract of the Disclosure, A process and apparatus are disclosed for providing antistatic protection to a plastic lens the apparatus, being adapted to carry out the process and comprising: (A) deionizing means for providing a flow of ionized air to at least a major surface of the lens;, (B) an airless spray system for applying a thin substantially uniform coating of liquid antistatic material onto the lens sufrace following its deionization. A decay chamber may be provided for at least partially isolating the lens from airborne contaminants as the antistatic material dries.
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 December 14, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 14, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 14, 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.