Printed circuit board
CA 1213072 A · Owner: Olin Corporation · Inventors: Butt, Sheldon H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A composite 24 is characterized by metal or alloy component 26 having a thin interface layer 28 on a surface 30 thereof. Another metal or alloy component 32 has a thin interface layer 34 on its surface 36. A glass 38, having a closely matched coefficient of thermal expansion to the metal or alloy components 26 and 32, bonds the thin interface layers 28 and 34 and electrically insulates the first component from the second component whereby thermal stress between the metal or alloy components and the glass is substantially eliminated.
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 October 21, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 21, 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.