3893259

Information

• Patent Grant
• 3893259

• References
• Source

• Patent Number

  3,893,259

• Date Filed

  Not available

• Date Issued

  Tuesday, July 8, 1975
  49 years ago

• CPC

  • E06B3/903 - consisting of arcuate wings revolving around a parallel axis situated outside the wing
  • E05D15/02 - for revolving wings
  • E05Y2900/132 - Doors

• US Classifications

  • 049 - Movable or removable closures
  • D25 - Building units and construction elements