Illumination assembly for dental and medical applications
CA 2217172 C · Owner: Surgical Acuity, Inc. · Inventors: Bushroe, Frederick N.; Caplan, Charles H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A small, lightweight, high intensity illumination assembly (20) for use in dental and medical applications. The illumination assembly (20) includes attachment means (30) for removable attachment to headgear such as eyeglasses (302), face shields, or headbands, and lenses loupes, and binoculars (304) , associated with such headgear. The illumination assembly (20) is able to achieve extremely light weight by using only a single optical element (24) therein, e.g. an aspheric condensing lens binary optical element, or , holographic optical means and by piping illumination to the optical element (24) from a remote light source by use of a flexible light guide (28) e.g. a , fiberoptic …
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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 May 23, 1996 and granted July 3, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 23, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 23, 2018.
- 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.