Hinged, adjustable mounting mechanism for an optical filter screen
CA 2242536 C · Owner: Drake, Gerald E. · Inventors: Drake, Gerald E.; Theirl, Scott G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An optical filter screen (100) for a visual monitor includes an optical filter supported by a support frame. A pair of adjustable mounting members (120A 120B) support the support frame from a visual display monitor or similar such that the optical filter is positioned adjacent a display area of the display monitor. Each mounting member includes a stem element (122A) with a first and second end (124A, 126A). A support element (128A) is rotatably engaged with the first end of the stem element so that in a first stop position the support element extends outwardly from the stem element to engage a top surface of the visual display unit. The support element folds down into a second …
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 4, 1997 and granted October 9, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 4, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 4, 2019.
- 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.