3611980

Information

• Patent Grant
• 3611980

• References
• Source

• Patent Number

  3,611,980

• Date Filed

  Not available

• Date Issued

  Tuesday, October 12, 1971
  52 years ago

• CPC

  • B60V1/15 - using part of the cushion-forming fluid
  • B60V1/115 - by ground or water engaging means
  • Y02T70/121 - Reducing surface friction

• US Classifications

  • 440 - Marine propulsion
  • 114 - Ships