3831940

Information

• Patent Grant
• 3831940

• References
• Source

• Patent Number

  3,831,940

• Date Filed

  Not available

• Date Issued

  Tuesday, August 27, 1974
  50 years ago

• CPC

  • A63B69/0073 - Means for releasably holding a ball in position; Balls constrained to move around a fixed point
  • A63B2071/026 - stabilised by weight
  • A63B2243/007 - American football

• US Classifications

  • 473 - Games using tangible projectile