The patent is in turn a continuity of Patent No. WXZ which in essence is a wireless communication network supporting the trasmission of voice and Data inside a premises.
The filing date of Patent No WXZ is Oct Dec 5th 19951992, that means that if granted XYZ will have a period till Oct Dec 5th 20152012. [[http://portal.uspto.gov/external/portal/!ut/p/kcxml/04_Sj9SPykssy0xPLMnMz0vM0Y_QjzKLN4gPMATJgFieAfqRqCLGpugijnABX4_83FT9IKBEpDlQxNDCRz8qJzU9MblSP1jfWz9AvyA3NDSi3NsRAHxEBJg!/delta/base64xml/L0lJSk03dWlDU1lKSi9vQXd3QUFNWWdBQ0VJUWhDRUVJaEZLQSEvNEZHZ2RZbktKMEZSb1hmckNIZGgvN18wXzE4TC8yNC9zYS5nZXRCaWI!#7_0_18L USPTO PAIR]]
'''*UPDATE - The USPTO has granted the application with a project patent No. XYZ! to be issued on 11th May 18th Jun 2010, and they have issued an extension of 1686 Days (4 yr and 225 1885 Days) i.e. till May 2020 2016 (est.)
'''