Tapered bearing housing
CA 2238985 C · Owner: Hustak, Jerome F. · Inventors: Maier, Martin D.; Hustak, Jerome F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A bearing structure having an annular cage (124) and an annular housing (114) that optionally mate at frustogeometrical surfaces (115a 125) for supporting , and positioning a rotatable shaft (102) of a turbomachine and that optionally provides a squeeze film damper between the frustogeometrical surfaces of the annular cage and the annular housing. A bearing structure having an annular cage (124) and an annular housing (114) that optionally mate at frustogeometrical surfaces (115a, 124) for supporting and positioning rotatable shaft (102) of a turbomachine and that optionally provides an externally adjustable squeeze film damper between the frustogeometrical surfaces of the annular …
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 October 16, 1997 and granted June 24, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 16, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 16, 2019.
- 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.