2181812

Information

• Patent Grant
• 2181812

• References
• Source

• Patent Number

  2,181,812

• Date Filed

  Not available

• Date Issued

  Tuesday, November 28, 1939
  85 years ago

• CPC

  • E06B1/70 - Sills Thresholds
  • E04F15/02166 - wherein the grooves are filled with inserts
  • Y10T428/169 - Sections connected flexibly with external fastener
  • Y10T428/192 - Sheets or webs coplanar

• US Classifications

  • 052 - Static structures
  • 428 - Stock material or miscellaneous articles