3452777

Information

• Patent Grant
• 3452777

• References
• Source

• Patent Number

  3,452,777

• Date Filed

  Not available

• Date Issued

  Tuesday, July 1, 1969
  55 years ago

• CPC

  • E21B34/08 - responsive to flow or pressure of the fluid obtained
  • Y10T137/7731 - Fluid counter-biased or unseated valve
  • Y10T137/7836 - Flexible diaphragm or bellows reactor
  • Y10T137/7905 - Plural biasing means

• US Classifications

  • 137 - Fluid handling