Electron beam recording film
CA 1303409 C · Owner: E.I. Du Pont De Nemours And Company · Inventors: Milner, Clifford E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Title, ELECTRON BEAM RECORDING FILM, ABSTRACT OF THE INVENTION An electron beam recording film comprising a support bearing, in order, (A) a sputtered layer of indium-tin oxide and, (B) a gelatino silver halide emulsion layer e.g. silver iodobromide, crosslinked with 2 to 10% by weight based on the weight of gelatin in the emulsion layer of a, Cr+3-containing compound e.g. chrome, alum, chromic chloride, etc. Optionally other layers can be present in the film e.g. crosslinked gelatin overcoat, subbing layer on support, titanium oxide layer on the indium-tin oxide 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
- Granted June 16, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 16, 2009.
- 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.