Secure financial instrument
CA 1313209 C · Owner: Mowry, William H. Jr. · Inventors: Mowry, William H. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A financial instrument has an amount printed on its face in which the digits making up the amount are printed in a negative pattern. The digits are formed by a series of rows of printed dots which define the outlines of the digits. To make alteration of the amount more difficult, each of the digits includes a boundary portion formed by a single row of dots which makes up a portion of the outline of each of the adjoining digits.
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 26, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 26, 2010.
- 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.