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Patent Searching and Data


Title:
ELECTRONIC POSTAGE STAMP AND USE METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/144883
Kind Code:
A1
Abstract:
Disclosed in the present invention is an electronic postage stamp, being used in association with an electronic communication letter, the electronic communication letter comprising a communication letter state parameter, and the electronic postage stamp having: a grade; an electronic postage stamp usage state parameter, the parameter value of the electronic postage stamp usage state parameter showing the different usage states of the electronic postage stamp; and a unique code; by means of the unique code of the postage stamp, the electronic postage stamp usage state parameter can be acquired and the communication letter state parameter of the electronic communication letter can also be acquired; when the communication letter state parameter of the electronic communication letter changes, the electronic postage stamp usage state parameter of the electronic postage stamp also changes correspondingly.

Inventors:
HUO ZHE (CN)
Application Number:
PCT/CN2019/072816
Publication Date:
August 01, 2019
Filing Date:
January 23, 2019
Export Citation:
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Assignee:
HUO ZHE (CN)
International Classes:
H04L12/58
Domestic Patent References:
WO2001067330A12001-09-13
Foreign References:
CN108768818A2018-11-06
CN1378362A2002-11-06
Attorney, Agent or Firm:
V&T INTELLECTUAL PROPERTY FIRM (CN)
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