2075293

Information

• Patent Grant
• 2075293

• References
• Source

• Patent Number

  2,075,293

• Date Filed

  Not available

• Date Issued

  Tuesday, March 30, 1937
  87 years ago

• CPC

  • E21B21/10 - Valve arrangements in drilling fluid circulation systems
  • Y10T137/2978 - Gas pressure controlled by manual or cyclic means
  • Y10T137/7856 - Valve seat formed on or carried by a coupling element

• US Classifications

  • 137 - Fluid handling
  • 166 - Wells