1868803

Information

• Patent Grant
• 1868803

• References
• Source

• Patent Number

  1,868,803

• Date Filed

  Not available

• Date Issued

  Tuesday, July 26, 1932
  92 years ago

• CPC

  • E04D1/045 - Vaulted roofing elements laid alternately side-up and side-down
  • E04D1/10 - of specified materials not covered by any one of groups E04D1/04 - E04D1/085 , or of combinations of materials, where at least one is not covered by any one of groups E04D1/04 - E04D1/085
  • E04D2001/005 - the roofing elements having a granulated surface
  • Y10S264/57 - Processes of forming layered products

• US Classifications

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