Photographic development by rotating film discs in processing baths
CA 1089691 A · Owner: Eastman Kodak Company · Inventors: Harvey, Donald M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A processor and processing method for treating flat discrete elements of photographic film preferably, in a disc format, includes the use of a spindle for receiving the elements in stacked, parallel relation normal to the spindle. The spindle mounted discs are rotated in a processing solution to provide relative movement between the discs and the solution and are, rotated while out of the processing solution to remove excess solution from the discs.
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 November 18, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 18, 1997.
- 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.