3800821

Information

• Patent Grant
• 3800821

• References
• Source

• Patent Number

  3,800,821

• Date Filed

  Not available

• Date Issued

  Tuesday, April 2, 1974
  50 years ago

• CPC

  • B60R25/042 - operating on the fuel supply
  • F16K35/08 - requiring setting according to a code
  • Y10T137/7162 - Combination lock
  • Y10T137/8192 - Unobvious - "combination lock" type
  • Y10T137/87129 - Rotary
  • Y10T137/87917 - Flow path with serial valves and/or closures

• US Classifications

  • 137 - Fluid handling
  • 251 - Valves and valve actuation