Research/Patents/US 6192128
US 6192128

CURRENT-SENSITIVE TELEPHONE-LINE DISCONNECT SYSTEM

Assignee

Filed

Feb 28, 1966

Granted

Feb 20, 2001

Location

TEMPLE HILL MD US

35 USC §181 Secrecy Order

Imposed

Jan 15, 1982

Rescinded

May 20, 1999

Duration

17 years, 4 months

Inventor

  • 1EDWIN C. MYERS
Back to patent indexSource: USPTO 35 USC §181 secrecy order records