1891740

Information

• Patent Grant
• 1891740

• References
• Source

• Patent Number

  1,891,740

• Date Filed

  Not available

• Date Issued

  Tuesday, December 20, 1932
  92 years ago

• CPC

  • B21C23/145 - Interlocking profiles
  • B21C23/14 - Making other products
  • Y10S160/12 - Overlapping, on windows
  • Y10T29/49925 - Inward deformation of aperture or hollow body wall
  • Y10T29/49936 - Surface interlocking
  • Y10T428/12326 - with provision for limited relative movement between components
  • Y10T428/1241 - Nonplanar uniform thickness or nonlinear uniform diameter [e.g., L-shape]
  • Y10T428/12451 - Macroscopically anomalous interface between layers

• US Classifications

  • 138 - Pipes and tubular conduits
  • 029 - Metal working
  • 052 - Static structures
  • 160 - Flexible or portable closure, partition, or panel
  • 267 - Spring devices
  • 428 - Stock material or miscellaneous articles