Observation device
CA 2480932 C · Owner: Janson, Cornelis Johannes · Inventors: Janson, Cornelis Johannes; Van Schaik, Sander Willem
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The object of the invention is to provide a camera that exhibits an increased impact-resistance and to that end the invention provides an observation device comprising a housing an optical lens with a field of view, which is accommodated within the housing said housing comprising an outer dome which is transparent at least in the field of view of the lens for protecting the lens, and an inner dome disposed within the outer dome. The observation device having the above construction is resistant to impact by an object with a maximum impact energy of a first magnitude whilst the observation device not fitted with an inner dome is resistant to impact by said object with a maximum impact energy …
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 September 9, 2004 and granted November 13, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 9, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 9, 2026.
- 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.