3773256

Information

• Patent Grant
• 3773256

• References
• Source

• Patent Number

  3,773,256

• Date Filed

  Not available

• Date Issued

  Tuesday, November 20, 1973
  51 years ago

• CPC

  • A47G21/18 - Drinking straws or the like
  • A47G2400/027 - Non-return valves
  • Y10T137/2897 - Collapsible bulb

• US Classifications

  • 239 - Fluid sprinkling, spraying, and diffusing
  • 137 - Fluid handling
  • 215 - Bottles and jars
  • 434 - Education and demonstration