Superconducting circuit fabrication
CA 1183282 A · Owner: Sperry Corporation · Inventors: Young, Peter L.; Stein, Barry F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved method of anodization of this films and the fabrication of superconducting devices using the improved method. An electrically conducting contact layer is formed over a substrate between an electrically conducting object layer and the substrate. Also an electrically insulating, layer is formed between the object layer and the contact layer. The contact layer is connected to a power supply and at least a preselected portion of the object layer is anodized to a predetermined thickness. This may include anodizing all of some preselected portions through the complete thickness of the object layer. The preselected portions are identified by providing a pattern of hardened photoresist …
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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 February 26, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 26, 2002.
- 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.