3663680

Information

• Patent Grant
• 3663680

• References
• Source

• Patent Number

  3,663,680

• Date Filed

  Not available

• Date Issued

  Tuesday, May 16, 1972
  52 years ago

• CPC

  • B63B5/24 - made predominantly of plastics
  • B29C41/025 - having hollow walls
  • B29C41/06 - about two or more axes
  • B29L2022/00 - Hollow articles

• US Classifications

  • 264 - Plastic and nonmetallic article shaping or treating: processes