Oriented copolyetherester elastomer
CA 1195464 A · Owner: E. I. Du Pont De Nemours And Company · Inventors: Mccormack, Charles E.; Brown, Martin L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A power transmission belt is formed from an oriented segmented thermoplastlc copolyetherester elastomer containing recurring long chain ester units derived from a dicarboxylic acid and a long chain glycol, and short chain ester units derived from a dicarboxylic acid and a low molecular weight diol.
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 October 22, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 22, 2002.
- 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.