2876842

Information

• Patent Grant
• 2876842

• References
• Source

• Patent Number

  2,876,842

• Date Filed

  Not available

• Date Issued

  Tuesday, March 10, 1959
  65 years ago

• CPC

  • B08B9/0555 - Gelled or degradable pigs
  • E21B37/045 - Free-piston scrapers

• US Classifications

  • 166 - Wells
  • 015 - Brushing, scrubbing, and general cleaning
  • 134 - Cleaning and liquid contact with solids
  • 175 - Boring or penetrating the earth