3720556

Information

• Patent Grant
• 3720556

• References
• Source

• Patent Number

  3,720,556

• Date Filed

  Not available

• Date Issued

  Tuesday, March 13, 1973
  52 years ago

• CPC

  • E04H15/20 - inflatable
  • B29C53/78 - using profiled sheets or strips
  • B29D25/00 - Producing frameless domes
  • E04B1/3211 - Structures with a vertical rotation axis or the like
  • E04B2001/3217 - Auxilliary supporting devices used during erection of the arched structures
  • E04B2001/3264 - hardened in-situ
  • E04H2015/204 - made from contiguous inflatable tubes
  • Y10T156/1005 - by inward collapsing of portion of hollow body
  • Y10T156/1007 - Running or continuous length work
  • Y10T156/1795 - Implement carried web supply

• US Classifications

  • 156 - Adhesive bonding and miscellaneous chemical manufacture
  • 052 - Static structures