3819192

Information

• Patent Grant
• 3819192

• References
• Source

• Patent Number

  3,819,192

• Date Filed

  Not available

• Date Issued

  Tuesday, June 25, 1974
  50 years ago

• CPC

  • E21B37/10 - Well swabs
  • Y10T428/12215 - Marginal slots [i.e., deeper than wide]
  • Y10T428/12417 - Intersecting corrugating or dimples not in a single line [e.g., waffle form, etc.]

• US Classifications

  • 277 - Seal for a joint or juncture
  • 428 - Stock material or miscellaneous articles