3831898

Information

• Patent Grant
• 3831898

• References
• Source

• Patent Number

  3,831,898

• Date Filed

  Not available

• Date Issued

  Tuesday, August 27, 1974
  50 years ago

• CPC

  • B28B7/0041 - the sidewalls of the mould being moved only parallelly away from the sidewalls of the moulded article
  • B28B7/32 - inflatable
  • B28B7/34 - Moulds, cores, or mandrels of special material
  • B28B11/0818 - for roughening, profiling, corrugating

• US Classifications

  • 249 - Static molds