Instrument or treatment instrument with laser sighting
CA 2313370 C · Owner: Hollander, Milton Bernard · Inventors: Hollander, Milton Bernard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A laser sighting device, for use in conjunction with measuring and treatment instruments, has means for generating at least one primary laser beam, of , relatively greater intensity to be directed at a target surface so as to illuminate a , small area thereof. The device has means for sub-dividing the at least one , primary laser beam into a greater number of secondary laser beams of lesser intensity directed towards the target area to define a zone for investigation with the instrument. The sighting device includes means for changing between primary and , secondary laser beams including a movable member having a first position in which , it presents a beam attenuator in the path of …
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 July 4, 2000 and granted April 12, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 4, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 4, 2022.
- 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.