3512304

Information

• Patent Grant
• 3512304

• References
• Source

• Patent Number

  3,512,304

• Date Filed

  Not available

• Date Issued

  Tuesday, May 19, 1970
  55 years ago

• CPC

  • E06B3/74 - with wooden panels or frame
  • E06B2003/7023 - of foam type
  • E06B2003/7071 - made of a plurality of separate blocks or strips
  • Y10T428/31703 - Next to cellulosic

• US Classifications

  • 049 - Movable or removable closures
  • 052 - Static structures
  • 428 - Stock material or miscellaneous articles
  • D25 - Building units and construction elements