2020553

Information

• Patent Grant
• 2020553

• References
• Source

• Patent Number

  2,020,553

• Date Filed

  Not available

• Date Issued

  Tuesday, November 12, 1935
  89 years ago

• CPC

  • A01N33/08 - containing oxygen or sulfur
  • C07C55/10 - Succinic acid
  • C07C59/08 - Lactic acid
  • C07C59/245 - containing hydroxy or O-metal groups
  • C07C59/265 - Citric acid
  • C07C59/50 - Mandelic acid
  • C07C59/52 - a hydroxy or O-metal group being bound to a carbon atom of a six-membered aromatic ring
  • C07C63/08 - Salts thereof
  • E05D7/081 - the pivot axis of the wing being situated near one edge of the wing, especially at the top and bottom
  • Y10T16/557 - Specific pintle structure

• US Classifications

  • 126 - Stoves and furnaces
  • 016 - Miscellaneous hardware