The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 30, 2010
Filed:
Mar. 25, 2004
Applicants:
Thierry Dupuis, Rueil, FR;
Alain Guirauton, Argenteuil, FR;
Inventors:
Thierry Dupuis, Rueil, FR;
Alain Guirauton, Argenteuil, FR;
Assignee:
IPG Electronics 504 Limited, St. Peter Port, GG;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M 1/66 (2006.01); H04M 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a method of unlocking mobile telephones, in particular one using the 'SIM-LOCK' method, the user of the telephone submits an unlocking request directly to the manufacturer of the telephone and the manufacturer sends unlocking information to the telephone after verifying with the operator that the user is entitled to unlocking. This simplifies the administration of unlocking requests and makes it more reliable.