Software based stamp dispenser
CA 2397287 A1 · Owner: Heiden, Richard W. · Inventors: Heiden, Gary M.; Heiden, Richard W.; Li, Chunhua
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for generating digital postage stamps (700) wherein a data center (40) receives a request from a PC (20) for a selected number of digital postage stamps (700), concludes a payment transaction for the selected number of digital postage stamps (700), generates a digital book (500 600) of , postage stamps, which the PC (20) downloads to its hard drive. The digital book (500, 600) of postage stamps includes a read-only software module (510) that prints each digital postage stamp (700) using stamp related information contained within the software module (510). The stamp related information includes stamp information, user information which identifies the requestor , and the PC …
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 December 20, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 20, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 20, 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.