Porous lubricant-impregnated bearing
CA 1078809 A · Owner: Minnesota Mining And Manufacturing Company · Inventors: Bidler, James L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A porous lubricant-impregnated bearing comprising a matrix of closely packed, discrete particles such, as glass microsphetes, bonded together with a bonding material, such as a cured organic bonding material that, only partially fills the interstices between the particles; and a migratable lubricant dispersed in the unfilled interstices.
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 June 3, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 3, 1997.
- 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.