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Expired Canadian patentCanada

Plastic integrated circuit package having reduced moisture absorption

CA 1255396 A · Owner: Gte Products Corporation · Inventors: Johnson, Richard E.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

An integrated circuit package for use in environments having a high moisture content has a plastic body having a given length and width and a thickness much less than said given length and width. The thickness exists between upper and lower surfaces of said body. A substantially moisture impervious layer is fixedly attached to the upper and lower surfaces. In a preferred form, the layers are metal selected from aluminum and copper.

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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 June 6, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 6, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 10, 1987
GrantedJune 6, 1989
Term endedJune 6, 2006
Patent numberCA 1255396 A
Classification (IPC)H01L23/31 +1 more

Timeline

Timeline From CIPO dates

1988199019921994199619982000200220042006Application filedMarch 10, 1987Patent grantedJune 6, 1989Term endedJune 6, 2006

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.