3791560

Information

• Patent Grant
• 3791560

• References
• Source

• Patent Number

  3,791,560

• Date Filed

  Not available

• Date Issued

  Tuesday, February 12, 1974
  50 years ago

• CPC

  • A61M5/31513 - Piston constructions to improve sealing or sliding
  • B29C55/30 - Drawing through a die
  • B29C65/565 - involving interference fits
  • B29C66/5344 - said single elements being substantially annular, i.e. of finite length
  • A61M5/31531 - Micro syringes
  • B29L2031/7494 - Pistons
  • B29L2031/7544 - Injection needles, syringes
  • Y10S251/90 - Valves with o-rings

• US Classifications

  • 222 - Dispensing
  • 251 - Valves and valve actuation