Battery separator material to envelope electrolytic plates of batteries
CA 1190280 A · Owner: Texon Inc. · Inventors: Waterhouse, John F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A roll of battery separator material having one side thereof embossed to form a plurality of longitudinally extending identations parallel and laterally spaced across the width of the material and on the opposing side thereof having a plurality of ribs of polyolefin material extruded thereon. Each of the ribs has a substantially triangular cross-section and is positioned in alignment with an indentation and has an apex in mating engagement therewith to prevent lateral slipping of laps of the roll and provides alignment for feeding off the roll.
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 July 9, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 9, 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.