Airspring sleeve and method
CA 1306760 C · Owner: Crabtree, Michael L. · Inventors: Crabtree, Michael L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An airspring sleeve and airspring having a chamber portion and rolling lobe portion reinforced with embedded cord wound at inconstant helical angles in at least one of the sleeve portions. A method of making an airspring sleeve with an embedded cord reinforcement in a chamber portion and a rolling lobe portion by winding cord at inconstant helical angles in at least one of the sleeve portions.
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 August 25, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 25, 2009.
- 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.