1394255

Information

• Patent Grant
• 1394255

• References
• Source

• Patent Number

  1,394,255

• Date Filed

  Not available

• Date Issued

  Tuesday, October 18, 1921
  103 years ago

• CPC

  • B28B7/34 - Moulds, cores, or mandrels of special material
  • B28B7/0094 - Moulds for concrete test samples
  • B28B23/0031 - with product identification means
  • Y10S249/04 - Test mold
  • Y10S264/44 - using destructible molds or cores in molding processes

• US Classifications

  • 249 - Static molds
  • 040 - Card, picture, or sign exhibiting
  • 229 - Envelopes, wrappers, and paperboard boxes
  • 264 - Plastic and nonmetallic article shaping or treating: processes