2722019

Information

• Patent Grant
• 2722019

• References
• Source

• Patent Number

  2,722,019

• Date Filed

  Not available

• Date Issued

  Tuesday, November 1, 1955
  69 years ago

• CPC

  • B63B22/06 - with means to cause the buoy to surface in response to a transmitted signal
  • B63B2209/12 - with time-delay

• US Classifications

  • 441 - Buoys, rafts, and aquatic devices
  • 367 - Communications, electrical: acoustic wave systems and devices