72453496 - SYNCHRO-HET

Information

  • Trademark
  • 72453496
  • Serial Number
    72453496
  • Registration Number
    993889
  • Filing Date
    April 04, 1973
    51 years ago
  • Registration Date
    September 24, 1974
    50 years ago
  • Transaction Date
    October 24, 2004
    20 years ago
  • Status Date
    July 03, 1995
    29 years ago
  • First Use Anywhere Date
    January 29, 1973
    51 years ago
  • First Use In Commerce Date
    January 29, 1973
    51 years ago
Mark Drawing Code
1000
Mark Identification
SYNCHRO-HET
Case File Statements
  • GS0261: LOCK-IN AMPLIFIERS-NAMELY, SPECIALIZED PHASE SENSITIVE AC VOLTMETERS USED TO MEASURE LOW-LEVEL SIGNALS OBSCURED BY NOISE
Case File Event Statements
  • 7/3/1995 - 29 years ago
    2 - EXPIRED SEC. 9 Type: EXRG
  • 4/21/1980 - 44 years ago
    1 - REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK. Type: C15A