3869290

Information

• Patent Grant
• 3869290

• References
• Source

• Patent Number

  3,869,290

• Date Filed

  Not available

• Date Issued

  Tuesday, March 4, 1975
  50 years ago

• CPC

  • C07C323/00 - Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups
  • C07D235/06 - with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached in position 2
  • C07D277/74 - Sulfur atoms substituted by carbon atoms
  • G03C1/09 - Noble metals or mercury Salts or compounds thereof Sulfur, selenium or tellurium, or compounds thereof
  • G03C1/346 - Organic derivatives of bivalent sulfur, selenium or tellurium
  • G03C2001/03511 - Bromide content
  • G03C2200/34 - Hydroquinone
  • G03C2200/38 - Lippmann (fine grain) emulsion
  • G03C2200/45 - Polyhydroxybenzene

• US Classifications

  • 430 - Radiation imagery chemistry: process, composition, or product thereof