3840139

Information

• Patent Grant
• 3840139

• References
• Source

• Patent Number

  3,840,139

• Date Filed

  Not available

• Date Issued

  Tuesday, October 8, 1974
  50 years ago

• CPC

  • F16J12/00 - Pressure vessels in general
  • F17C1/16 - constructed of plastics materials
  • F17C2201/0109 - with exteriorly curved end-piece
  • F17C2201/0119 - with flat end-piece
  • F17C2203/0604 - Liners
  • F17C2203/0619 - with two layers
  • F17C2205/0305 - Bosses
  • F17C2205/0329 - manually actuated
  • F17C2205/0394 - in direct contact with the pressure vessel
  • F17C2209/2163 - with a mandrel
  • F17C2260/011 - Improving strength
  • Y10S220/23 - Fiberglass

• US Classifications

  • 220 - Receptacles