Series evaporator
CA 2061176 A1 · Owner: Weinert, Hilmar · Inventors: Weinert, Hilmar
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Wt01?? CA 4P Verpackungen Ronsberg, and Series evaporator Weinert, ABSTRACT, S u m m a r y Series evaporator, Series evaporator with thermal insulation on all sides radiant, heaters and heat shields that have a number of vapour outlet openings facing a substrate that is to be coated where the radiant heaters, are essentially flat are each located underneath an upper heat shield and within the area protected by the shield concerned and run parallel, to the surface of the material that is to be evaporated and where the, outlet openings directed towards the material that is to be coated are provided between the radiant heaters.
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 February 13, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 13, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 13, 2014.
- 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.