Method and apparatus for improved tire uniformity
CA 2015171 C · Owner: Uniroyal Goodrich Licensing Services, Inc. · Inventors: Tabaddor, Farhad; Rogers, Clarence L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved of processing a tire on a, uniformity machine comprising the steps of sensing the radial force variations in a tire and generating a composite waveform corresponding to the sensed force variations, converting the composite waveform into a special function waveform selected from the class of waveforms which includes filtered partial square waves partial sine waves and full sine waves selecting either, from a table or adaptively one of the special function waveforms and grinding of the tire in response to the selected special function waveform.
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 April 23, 1990 and granted September 15, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 23, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 23, 2012.
- 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.