Expired European patentEurope
Method for caller reoriginating call in the prepaid card service
EP 1838112 B1 · Applicant: Huawei Technologies Co., Ltd.
Overview
The published document from the EPO: abstract, claims, description and drawings. Open it full size
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Listed from its EPO record in Patent Yard's archive of European patents past their term. Its claims, description and drawings are in the EPO PDF and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed December 26, 2005 and granted March 28, 2012. A European patent lasts at most 20 years from filing, so its term ended December 26, 2025.
- Supplementary protection certificates extend only medicine and crop-protection patents, and it isn't classified as either.
- We check European rights only. A US or other national patent in its family could still be in force: check its family on Espacenet or Google Patents.
FiledDecember 26, 2005
PublishedSeptember 26, 2007
GrantedMarch 28, 2012
Term endedDecember 26, 2025
Application numberEP 05822730
Classification (CPC)H04L65/1046 +2 more
Timeline
Timeline From EPO dates
Sources & verification
Official EPO records
Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.