3872199

Information

• Patent Grant
• 3872199

• References
• Source

• Patent Number

  3,872,199

• Date Filed

  Not available

• Date Issued

  Tuesday, March 18, 1975
  49 years ago

• CPC

  • E06B3/86 - of plastics without an internal frame
  • B29C44/206 - Using expandable particles or beads as starting material
  • B29C44/22 - consisting of at least two parts of chemically or physically different materials
  • Y10T428/24512 - Polyurethane
  • Y10T428/24595 - and varying density
  • Y10T428/24992 - Density or compression of components
  • Y10T428/249981 - Plural void-containing components
  • Y10T428/249991 - Synthetic resin or natural rubbers

• US Classifications

  • 264 - Plastic and nonmetallic article shaping or treating: processes
  • 052 - Static structures
  • 425 - Plastic article or earthenware shaping or treating: apparatus
  • 428 - Stock material or miscellaneous articles