3312902

Information

• Patent Grant
• 3312902

• References
• Source

• Patent Number

  3,312,902

• Date Filed

  Not available

• Date Issued

  Tuesday, April 4, 1967
  57 years ago

• CPC

  • B63B22/12 - the surfacing of the buoy being assisted by a gas released or generated on submergence of the buoy
  • G08B5/002 - Distress signalling devices
  • B63B2201/16 - Radio
  • B63B2209/02 - water activated switches
  • B63B2209/04 - water activated batteries

• US Classifications

  • 455 - Telecommunications
  • 343 - Communications: radio wave antennas
  • 441 - Buoys, rafts, and aquatic devices