1561102

Information

• Patent Grant
• 1561102

• References
• Source

• Patent Number

  1,561,102

• Date Filed

  Not available

• Date Issued

  Tuesday, November 10, 1925
  99 years ago

• CPC

  • F17C3/08 - by vacuum spaces
  • F17C2201/0128 - spherical or elliptical
  • F17C2203/018 - by attachment at the neck
  • F17C2203/0391 - by vacuum
  • F17C2203/0629 - Two walls
  • F17C2203/0636 - Metals
  • F17C2205/0347 - Active charcoal type
  • F17C2221/031 - Air
  • F17C2223/0161 - cryogenic
  • F17C2223/033 - Small pressure
  • F17C2260/031 - due to heat transfer

• US Classifications

  • 220 - Receptacles