3222441

Information

• Patent Grant
• 3222441

• References
• Source

• Patent Number

  3,222,441

• Date Filed

  Not available

• Date Issued

  Tuesday, December 7, 1965
  59 years ago

• CPC

  • F16L43/008 - made from plastic material
  • B29C65/665 - using shrinking during cooling
  • E04D13/08 - Down pipes Special clamping means therefor
  • B29L2031/703 - Bellows
  • E04D2013/0833 - Elbow pieces

• US Classifications

  • 264 - Plastic and nonmetallic article shaping or treating: processes