Flexible, plastic battery separator and process for making same
CA 1092761 A · Owner: Amerace Corporation · Inventors: Goldberg, Bruce S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A composition processable into a usable article such as, for example, a flexible, plastic-based microporous, battery separator, is formed by admixing a polymeric resinous binder, a plasticizer, an inorganic filler a solvent, and a nonsolvent. The composition is then extruded and calendered into a relatively thin sheet passed through an, extraction water bath and dried.
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 January 6, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 6, 1998.
- 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.