Static discharging device
CA 2055797 A1 · Owner: Lin, Spencer B. · Inventors: Lin, Spencer B.; Lin, Spencer B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Static Discharging Device, Abstract This invention provides a static discharging device comprising a conductive antenna and a conductive retainer connected to each other, said retainer can be worn on any finger to make a quick and short tap on any metallic portion to discharge the static electricity.
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 November 19, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 19, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 19, 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.