3861674

Information

• Patent Grant
• 3861674

• References
• Source

• Patent Number

  3,861,674

• Date Filed

  Not available

• Date Issued

  Tuesday, January 21, 1975
  50 years ago

• CPC

  • A63B5/10 - for aquatic sports
  • Y10S273/04 - Ethylene
  • Y10S273/07 - Glass fiber
  • Y10S273/08 - Urethane
  • Y10T428/233 - Foamed or expanded material encased
  • Y10T428/239 - Complete cover or casing
  • Y10T428/24488 - Differential nonuniformity at margin
  • Y10T428/24537 - Parallel ribs and/or grooves
  • Y10T428/24777 - Edge feature
  • Y10T428/249976 - Voids specified as closed
  • Y10T428/24999 - Inorganic

• US Classifications

  • 482 - Exercise devices
  • 273 - Amusement devices: games
  • 428 - Stock material or miscellaneous articles