3647308

Information

• Patent Grant
• 3647308

• References
• Source

• Patent Number

  3,647,308

• Date Filed

  Not available

• Date Issued

  Tuesday, March 7, 1972
  52 years ago

• CPC

  • B28B7/186 - for plates, panels or similar sheet- or disc-shaped objects, also flat oblong moulded articles with lateral openings
  • B28B1/085 - Introducing non-longitudinal reinforcing elements
  • B28B7/30 - adjustable, collapsible, or expanding

• US Classifications

  • 425 - Plastic article or earthenware shaping or treating: apparatus
  • 249 - Static molds