2722336

Information

• Patent Grant
• 2722336

• References
• Source

• Patent Number

  2,722,336

• Date Filed

  Not available

• Date Issued

  Tuesday, November 1, 1955
  69 years ago

• CPC

  • F17C3/08 - by vacuum spaces
  • A47J41/028 - made of metal
  • F17C2201/0109 - with exteriorly curved end-piece
  • F17C2201/0119 - with flat end-piece
  • F17C2201/0128 - spherical or elliptical
  • F17C2203/014 - Suspension means
  • F17C2203/018 - by attachment at the neck
  • F17C2203/0312 - cooled by external means
  • F17C2203/0391 - by vacuum
  • F17C2203/0607 - Coatings
  • F17C2203/0629 - Two walls
  • F17C2203/0643 - Stainless steels
  • F17C2209/221 - Welding
  • F17C2221/017 - Helium
  • F17C2223/0161 - cryogenic
  • F17C2223/033 - Small pressure
  • F17C2260/033 - by enhancing insulation

• US Classifications

  • 220 - Receptacles
  • 114 - Ships