Encoding and decoding system
CA 1293061 C · Owner: Johnsen, Edward L. · Inventors: Johnsen, Edward L.; Hughes, David C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for processing coupons documents, or the like, including the assembling multiple encoding and decoding of coupons, or other documents requiring coding for the purpose of making the coupon uniquely identifiable and traceable. A machine encodes individual coupons or booklets or other documents with a unique code, a subsequent machine reads the encoded coupon or booklet of coupons and applies additional information such as a person's name and address, and another unique code to the coupon, coupon booklet or the like, and records all of this data in a computer master data base. The coupons coupon booklets, or the like, are then issued to the person whose name appears on the document. …
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 December 10, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 10, 2008.
- 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.