Rack and a tank for a photographic processing apparatus
CA 2088970 A1 · Owner: Patton, David Lynn · Inventors: Patton, David Lynn; Piccinino, Ralph Leonard, Jr.; Rosenburgh, John Howard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for processing photosensitive materials, which comprises: a tank through which a processing solution flows; a rack having integral means to facilitate its insertion and removal from the tank the rack and the tank are relatively dimensioned so that a small volume for holding processing solution and photosensitive material is formed between the rack and the tank; means for circulating the processing solution through the small volume; and means coupled to the rack for moving the photosensitive material through the small volume.
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 5, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 5, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 5, 2015.
- 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.