Head support
CA 2299483 A1 · Owner: Ultralink Ophthalmics Inc. · Inventors: Phillips, Scott Howard; Reinstein, Dan; Taylor, Paul Wesley
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a head support apparatus. The apparatus may for example be used for, ophthalmic examination. In some embodiments the apparatus may allow six , degrees of freedom of motion during initial positioning of a patient's head and may then , be locked to, hold the patient's head in place precisely. The head support mechanism may include three, shafts connecting an upper frame to a structure. Each shaft may be provided with a ball-and-, socket joint at one end and a lockable bearing assembly on the other end. The lockable, bearing assembly may provide a combination of sliding and pivotal movement. A biasing, assembly may be provided to support each shaft and to return …
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 February 24, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 24, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 24, 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.