2213787

Information

• Patent Grant
• 2213787

• References
• Source

• Patent Number

  2,213,787

• Date Filed

  Not available

• Date Issued

  Tuesday, September 3, 1940
  84 years ago

• CPC

  • G03C7/3815 - with one heterocyclic ring
  • C01B17/0482 - with carbon or solid carbonaceous materials

• US Classifications

  • 423 - Chemistry of inorganic compounds