Graphite fiber reinforced tires & method of incorporating graphite fibers into an elastomer
CA 2125203 A1 · Owner: The Goodyear Tire & Rubber Company · Inventors: Obermaier, Christina Hall; Tung, William C. T.; Legge, Ronald Walter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Graphite Fiber Reinforced Tires, and Method of Incorporating Graphite Fibers into an Elastomer, ABSTRACT OF THE DISCLOSURE The invention relates to elastomers and articles reinforced with 0.10 to 25 phr Graphite fibers having a diameter of 0.05 to 0.5 microns and length from 1 to 40 µm. Also provided is an economical method of incorporating very fine Graphite fibers into an elastomer matrix. In the method Graphite fibers are dispersed in an acidic solution and mixed with a coagulating liquid (for coagulating latex) and the, mixture of graphite/coagulating liquid is mixed with a latex solution to provide an elastomer/graphite composite.
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 June 6, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 6, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 6, 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.