Method for storing security relevant data
CA 2116818 C · Owner: Francotyp-Postalia Aktiengesellschaft & Co. · Inventors: Kunde, Christoph; Gunther, Stephan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a method for storing security relevant data in a postage meter the same data (A B, C, D) are stored in at least four memory areas (a b, c, d). The data (A, B, C, D) of each memory area (a b, c, d) are compared with the data (A B, C, D) of other memory areas (a, b, c d). In dependence on these comparisons (V1 to V6) the memory area or memory areas (a b, c, d) having faulty data (A, B, C, D) are ascertained and if suitable are reloaded with data (A B, C, D) from a memory area (a, b, c, d) with fault free data. The method operates at small expense and can correct the ascertained data faults.
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
- Filed March 2, 1994 and granted June 29, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 2, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 2, 2016.
- 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.