1644965

Information

• Patent Grant
• 1644965

• References
• Source

• Patent Number

  1,644,965

• Date Filed

  Not available

• Date Issued

  Tuesday, October 11, 1927
  97 years ago

• CPC

  • C04B18/125 - Slate residues
  • Y02W30/93 - from quarries, mining or the like
  • Y10S264/80 - Processes of waterproofing

• US Classifications

  • 106 - Compositions: coating or plastic
  • 264 - Plastic and nonmetallic article shaping or treating: processes