3055146

Information

• Patent Grant
• 3055146

• References
• Source

• Patent Number

  3,055,146

• Date Filed

  Not available

• Date Issued

  Tuesday, September 25, 1962
  62 years ago

• CPC

  • E04G13/06 - for stairs, steps, cornices, balconies, or other parts corbelled out of the wall
  • B28B7/225 - for making stairs or stair units comprising more than one step

• US Classifications

  • 052 - Static structures
  • 249 - Static molds
  • 264 - Plastic and nonmetallic article shaping or treating: processes