3858997

Information

• Patent Grant
• 3858997

• References
• Source

• Patent Number

  3,858,997

• Date Filed

  Not available

• Date Issued

  Tuesday, January 7, 1975
  50 years ago

• CPC

  • E01F9/638 - by connection of stud-and-socket type
  • E01F9/61 - Special features of delineator posts
  • E01F9/677 - the sign posts being removable without tools
  • E01F9/681 - the sign posts being fastened by removable means

• US Classifications

  • 404 - Road structure, process, or apparatus
  • 040 - Card, picture, or sign exhibiting
  • 116 - Signals and indicators