Electrical circuit logic elements
CA 1060587 A · Owner: Siemens Aktiengesellschaft · Inventors: Schwabe, Ulrich; Rathbone, Ronald; Rydval, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A bipolar S3TL-gate (Small Swing Schottky Transistor Logic) is proposed, in which two Schottky diodes mutually differing, either in area, but with a low start voltage are employed using identical processing for metallization and/or mutually differing, doping levels of the silicon surface preferably effected by means, of ion implantation. -1-
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 August 14, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 14, 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.
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.