2374740

Information

• Patent Grant
• 2374740

• References
• Source

• Patent Number

  2,374,740

• Date Filed

  Not available

• Date Issued

  Tuesday, May 1, 1945
  79 years ago

• CPC

  • E04D1/34 - Fastenings for attaching roof-covering elements to the supporting elements
  • F16B13/04 - with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
  • E04D2001/3423 - Nails, rivets, staples or straps piercing or perforating the roof covering material
  • E04D2001/3426 - Threaded elements
  • E04D2001/3467 - through apertures, holes or slots
  • E04D2001/3482 - the fastening means taking hold directly on elements of succeeding rows and fastening them simultaneously to the structure
  • E04D2001/3494 - made of rigid material having a flat external surface

• US Classifications

  • 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
  • 052 - Static structures
  • 081 - Tools