1378273

Information

• Patent Grant
• 1378273

• References
• Source

• Patent Number

  1,378,273

• Date Filed

  Not available

• Date Issued

  Tuesday, May 17, 1921
  103 years ago

• CPC

  • B63B1/047 - with spherical hull or hull in the shape of a vertical ring
  • B63C9/06 - Floatable closed containers with accommodation for one or more persons inside
  • B63C2009/026 - Covered lifeboats, or life-rafts comprising self-levelling compartments for occupants

• US Classifications

  • 441 - Buoys, rafts, and aquatic devices