3720971

Information

• Patent Grant
• 3720971

• References
• Source

• Patent Number

  3,720,971

• Date Filed

  Not available

• Date Issued

  Tuesday, March 20, 1973
  51 years ago

• CPC

  • B29D35/0063 - Moulds
  • A43D8/006 - for forming shoe stiffeners
  • A43D8/04 - Stamping-out
  • A43D8/12 - Patterns or templates therefor
  • A43D8/28 - Patterns for drawing cut-outs
  • B29D35/0072 - Last constructions; Mountings therefor
  • B29D35/126 - Uppers
  • B29C43/12 - using bags surrounding the moulding material or using membranes contacting the moulding material

• US Classifications

  • 012 - Boot and shoe making