3899564

Information

• Patent Grant
• 3899564

• References
• Source

• Patent Number

  3,899,564

• Date Filed

  Not available

• Date Issued

  Tuesday, August 12, 1975
  49 years ago

• CPC

  • A61F6/148 - with sheet-like structure
  • B29C45/1671 - with an insert
  • B29C2045/1673 - injecting the first layer, then feeding the insert, then injecting the second layer

• US Classifications

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