1840324

Information

• Patent Grant
• 1840324

• References
• Source

• Patent Number

  1,840,324

• Date Filed

  Not available

• Date Issued

  Tuesday, January 12, 1932
  93 years ago

• CPC

  • B63B22/24 - container type
  • B63B22/18 - having means to control attitude or position
  • B63B22/20 - Ballast means
  • B63B2201/14 - Balloon
  • B63B2207/02 - Variable ballast or buoyancy

• US Classifications

  • 114 - Ships
  • 441 - Buoys, rafts, and aquatic devices