Conical pen
CA 1109023 A · Owner: Penn Corporation · Inventors: Koeln, Harold E.; Sherman, Alan E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A writing instrument in a conical configuration is provided which is less easily misplaced and which can be placed in a position of vertical stability if desired. The surface areas of the writing instrument are well adapted to display decorative or promotional indicia of a number of different types, or a combination of both.
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 September 15, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 15, 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.