Method for producing a cryostatic stabilizer
CA 2117448 A1 · Owner: Hasegawa, Masahiro · Inventors: Yasuda, Hitoshi; Takahashi, Akihiko; Hasegawa, Masahiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosure is a method for producing a cryostatic stabilizer composed of high-purity aluminum which comprises extruding the high-purity aluminum at an extrusion temperature of 250 to 500~C, an extrusion speed of not more than 20 m/min and an extrusion ratio of 10 to 150 by using an extruding machine equipped with a cylindrical die having helical grooves or projections on the inner surface. The method is industrially advantageous.
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
- Filed August 10, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 10, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 10, 2016.
- 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.