2030568

Information

• Patent Grant
• 2030568

• References
• Source

• Patent Number

  2,030,568

• Date Filed

  Not available

• Date Issued

  Tuesday, February 11, 1936
  88 years ago

• CPC

  • G11B3/70 - characterised by the selection of material or structure Processes or apparatus specially adapted for manufacturing record carriers
  • B32B23/04 - comprising such cellulosic plastic substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
  • B32B23/18 - Fillers
  • B32B23/20 - comprising esters
  • C08K5/0016 - Plasticisers
  • G11B3/68 - Record carriers
  • B29C65/02 - by heating, with or without pressure
  • B29C66/452 - the article having a disc form
  • B29C66/71 - characterised by the composition of the plastics material of the parts to be joined
  • B29C66/73921 - characterised by the materials of both parts being thermoplastics
  • B29C66/9141 - by controlling or regulating the temperature
  • B29C66/919 - characterised by specific temperature, heat or thermal flux values or ranges
  • B29C66/929 - characterized by specific pressure, force, mechanical power or displacement values or ranges
  • B29K2201/08 - Cellulose derivatives
  • B29L2017/003 - Records or discs
  • B32B38/06 - Embossing
  • B32B2429/02 - Records or discs
  • Y10T428/2457 - Parallel ribs and/or grooves
  • Y10T428/31986 - Regenerated or modified

• US Classifications

  • 428 - Stock material or miscellaneous articles
  • 369 - Dynamic information storage or retrieval