Ultraviolet light processor and method of exposing surfaces to ultraviolet light
CA 1059092 A · Owner: Ppg Industries, Inc. · Inventors: Ramler, Warren J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Ultraviolet light processors which expose the central region of the surface of a workpiece to more ultraviolet light than the edges are provided with secondary sources of ultraviolet light which expose the edges to more ultraviolet light than the central region. The central region and the edges are therefore exposed to approximately equal total amounts of ultraviolet energy per unit area.
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 July 24, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 24, 1996.
- 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.