Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
AT&T Corp
Publication date
Priority to CA80183FpriorityCriticalpatent/CA80183S/en
Application grantedgrantedCritical
Publication of CA80183SpublicationCriticalpatent/CA80183S/en