Ceramic case capacitor
CA 2004241 C · Owner: Pruett, Donald N. · Inventors: Pruett, Donald N.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A ceramic cased capacitor and related method of construction are provided, wherein the capacitor is substantially impervious to moisture penetration and is adapted for attachment to conductive leads with superior lead pull strength. The capacitor comprises at least two conductive plates encased at a selected gap within a substantially monolithic casing of selected dielectric material such as a ceramic material. The plates each include a tab projecting beyond an adjacent margin of the other plate. Recessed seats are formed in the casing as by drilling to bridge at least partially into the tabs. Conductive lead ends are attached to the capacitor by soldering within the recessed seats, thereby …
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 30, 1989 and granted July 27, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 30, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 30, 2011.
- 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.