3911961

Information

• Patent Grant
• 3911961

• References
• Source

• Patent Number

  3,911,961

• Date Filed

  Not available

• Date Issued

  Tuesday, October 14, 1975
  49 years ago

• CPC

  • F16L59/08 - Means for preventing radiation
  • F16L59/07 - the air layer being enclosed by one or more layers of insulation
  • Y10S138/07 - Resins
  • Y10S138/10 - Metal foil

• US Classifications

  • 138 - Pipes and tubular conduits