Slide surface construction formed of aggregate of fe crystals having body-centered cubic structure
CA 2110755 C · Owner: Gunji, Takahiro · Inventors: Gunji, Takahiro; Okamoto, Kazuhisa; Fujisawa, Yoshikazu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A slide surface construction is formed of an aggregate of Fe crystals having a body-centered cubic structure. The aggregate includes (3hh0) oriented metal crystals with their (3hh0) planes (by Miller indices) oriented toward a slide surface. The content S of said (3hh0) oriented metal crystals is set in a range represented by S ~ 40%. This makes it possible to provide a slide surface construction which has a predetermined hardness and an excellent wear resistance and ensures that the wearing of a mating member having a lower hardness can be suppressed.
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 December 6, 1993 and granted November 17, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 6, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 6, 2015.
- 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.