Rocker switch
CA 2038017 A1 · Owner: Kirkwood, George T. · Inventors: Rohde, Mark W.; Kirkwood, George T.; Schalk, Dick G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
of Disclosure, A rocker switch particularly for selecting, voices in an electronic organ. A translucent tab is pivotally mounted at its center on a printed circuit board such that when the tab is pressed at either end it, actuates a respective elastomeric electric switch also mounted on the printed circuit board. A lamp is releasably mounted on the printed circuit board through an aperture in the back thereof by a twist-lock mechanism. A petal-like reflector and shield is disposed behind the tab for reflecting light from the lamp through the tab while blocking stray light and minimizing heat buildup. Elastomeric electric switches are positioned on the circuit board by pins and held in place …
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 March 12, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 12, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 12, 2013.
- 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.