Method and apparatus for determining characteristics of clay-bearing formations
CA 1213080 A · Owner: Dresser Industries, Inc. · Inventors: Rukhovets, Naum; Fertl, Walter H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
16, ABSTRACT:, In a high-frequency circuit arrangement es-, pecially passive parts of the circuit are realized in a semiconductor body in which active circuit elements of another semiconductor material are located in recesses in the semiconductor body. When it is ensured that the semiconductor body is at least in part low-ohmic a reference, plane, for example, the ground plane can extend very, close to the elements of the circuit arrangement. Consequently and due to the shorter connections parasitic, effects are considerably reduced. When only one active element is mounted and only connections for this element are formed on the semiconductor body, a very suitable support for mounting and …
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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 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
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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.