3889422

Information

• Patent Grant
• 3889422

• References
• Source

• Patent Number

  3,889,422

• Date Filed

  Not available

• Date Issued

  Tuesday, June 17, 1975
  49 years ago

• CPC

  • E06B3/825 - with a wooden frame
  • E06B2003/7063 - reinforced; in combination with other materials

• US Classifications

  • 049 - Movable or removable closures
  • 052 - Static structures