1990434

Information

• Patent Grant
• 1990434

• References
• Source

• Patent Number

  1,990,434

• Date Filed

  Not available

• Date Issued

  Tuesday, February 5, 1935
  90 years ago

• CPC

  • B29C47/8895 - using a bath
  • B29C49/38 - mounted on movable endless supports
  • B29C49/40 - on co-operating drums
  • E04C2/32 - formed of corrugated or otherwise indented sheet-like material composed of such layers with or without layers of flat sheet-like material
  • B29C47/0023 - Hollow rigid articles having only one tubular passage
  • B29C47/0033 - Articles having longitudinal irregularities
  • Y10T428/24174 - including sheet or component perpendicular to plane of web or sheet
  • Y10T428/2975 - Tubular or cellular

• US Classifications

  • 428 - Stock material or miscellaneous articles
  • 065 - Glass manufacturing
  • 264 - Plastic and nonmetallic article shaping or treating: processes