Exposure device and printer
CA 2080719 C · Owner: Oce-Nederland B.V. · Inventors: Reinten, Hans
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An exposure device comprising a straight row of substantially rectangular LED's, each LED comprising at least one non-emitting zone (34) having a width (a) which divides the LED into at least two equal parts (32 33) having a width (c), a separating zone (35) of width (b) being situated between each of the LED's and the width (a) of the non-emitting zone (34) being smaller than 1.5 times the width (b) of a separating zone (35) and larger than 0.75 times the width (b) of the separating zone (35).
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 October 16, 1992 and granted December 24, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 16, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 16, 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.