Proof of postage digital franking
CA 2391018 A1 · Owner: Ascom Hasler Mailing Systems, Inc. · Inventors: Brown, Michael; Schwartz, Robert; Brookner, George
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A proof-of-postage generating system (22 24, 25, 26, 27) wherein funds, application of those funds the replenishment of those funds and the auditing of those funds are secure against attempts at fraud. The system (22 24, 25, 26, 27) may either be a Closed System (CS) wherein the proof-of-postage printing means (22) are housed within the system computational means (24 26) , or within a cryptographically secure boundary. Further the system (22, 24, 25, 26, 27) may be an Open System (OS) wherein the proof-of-postage printing means are external to the system computational means (24 26).
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 November 13, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 13, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 13, 2022.
- 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.