Electrolytic capacitor with a hermetic seal
CA 1203586 A · Owner: Sprague Electric Company · Inventors: Green, Gilbert E. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, An electrolytic capacitor has a glass-to-metal hermetic seal which includes a metal washer bonded to a compression ring having the same outer diameter but larger inner diameter than the washer. A mass of glass containing a tubular feed-through having substantially the expansion coefficient of the glass abuts the inner diameter of the ring and is bonded to the washer. The seal is attached to an open end of a capacitor housing solely around the bottom periphery of the washer.
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
- Granted April 22, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 22, 2003.
- 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.