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Expired Canadian patentCanada

Complementary storage element

CA 1047646 A · Owner: Siemens Aktiengesellschaft · Inventors: Goser, Karl

CIPO record

Overview

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

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Abstract From the Canadian patent

A complementary storage element with two inverters and one selector element is disclosed wherein an inverter in each case consists of a switching element and a load element connected in series with a junction point therebetween and wherein the selector element is connected to a digit line, and wherein the gate terminal of the selector element is operated by a word line, the two inverters being connected in series with their source terminals being connected together at a junction point and the terminals of the load elements which are not connected to the switching transistors each connected to a supply voltage line. The switching transistors are provided with feedback.

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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 January 30, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 30, 1996.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedJanuary 30, 1979
Term endedJanuary 30, 1996
Patent numberCA 1047646 A
Classification (IPC)G11C11/40 +2 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedJan 30, 1979Term endedJan 30, 1996

Sources & verification

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