3529987

Information

• Patent Grant
• 3529987

• References
• Source

• Patent Number

  3,529,987

• Date Filed

  Not available

• Date Issued

  Tuesday, September 22, 1970
  54 years ago

• CPC

  • F28F19/02 - by using coatings
  • B05D1/12 - Applying particulate materials
  • B05D7/22 - to internal surfaces
  • B29C63/26 - Lining or sheathing of internal surfaces
  • F24H1/142 - using electric energy supply
  • F28F3/14 - by separating portions of a pair of joined sheets to form channels
  • F28F13/18 - by applying coatings
  • B05D3/102 - Pretreatment of metallic substrates
  • B05D2401/30 - the coating being applied in other forms than involving eliminable solvent, diluent or dispersant
  • Y10T29/49982 - Coating

• US Classifications

  • 427 - Coating processes
  • 029 - Metal working
  • 148 - Metal treatment
  • 219 - Electric heating
  • 220 - Receptacles
  • 338 - Electrical resistors
  • 392 - Electric resistance heating devices