2452640

Information

• Patent Grant
• 2452640

• References
• Source

• Patent Number

  2,452,640

• Date Filed

  Not available

• Date Issued

  Tuesday, November 2, 1948
  76 years ago

• CPC

  • E04C2/386 - with a frame of unreconstituted or laminated wood
  • E04B1/6812 - Compressable seals of solid form
  • E04B2/14 - Walls having cavities in, but not between, the elements
  • E04C2/36 - spaced apart by transversely-placed strip material
  • E04B2002/0295 - of which the width is equal to the wall thickness

• US Classifications

  • 052 - Static structures