Device for edging the points of ball pens in particular those made of hard material
CA 1098296 A · Owner: Albe, S.A. · Inventors: Buzzi, Ugo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for edging points of ball point pens wherein three equivangularly spaced rollers run on a conical surface. The point to be worked is moved into a working zone defined by regions of the three rollers in a direction along the axis of the conical surface in a direction from the apex to the conical surface towards the wider end of the conical surface. The rollers either react against a rotatable disc or a fixed shaft in which, latter case the conical surface is rotatable.
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 March 31, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 31, 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.