Adapter for positioning a lens
CA 2313820 C · Owner: Howard, Carol A. · Inventors: Howard, Carol A.; Strang, Ward E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A multifunction adapter for use in a motion sensor module holds a lens at the front of the adapter in a predetermined position and distance relative to a sensor , mounted on a circuit board, and uses positioning projections at the rear of the adapter , to set a predetermined distance of the adapter from the sensor and the circuit board. , The adapter can be adjusted to set the focal point of the lens at an optimized position , for the sensor. Additionally a cover that shrouds the sensor is present on the rear , side of the adapter for reducing or eliminating air flowing across and around the , sensor. When the sensor is a passive infrared device the reduction in air , flowing , …
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 12, 2000 and granted August 28, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 12, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 12, 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.