3388509

Information

• Patent Grant
• 3388509

• References
• Source

• Patent Number

  3,388,509

• Date Filed

  Not available

• Date Issued

  Tuesday, June 18, 1968
  56 years ago

• CPC

  • E04B1/169 - inflatable
  • B28B7/32 - inflatable
  • B28B19/0092 - to webs, sheets or the like
  • B28B23/0068 - Embedding lost cores
  • E04B1/168 - flexible
  • E04C2/044 - of concrete
  • E04G15/061 - Non-reusable forms
  • E04H15/20 - inflatable
  • E04B2/8658 - using wire netting, a lattice or the like as form leaves
  • E04H2015/202 - with inflatable panels, without inflatable tubular framework
  • E04H2015/204 - made from contiguous inflatable tubes

• US Classifications

  • 052 - Static structures
  • 264 - Plastic and nonmetallic article shaping or treating: processes
  • D25 - Building units and construction elements