2489879

Information

• Patent Grant
• 2489879

• References
• Source

• Patent Number

  2,489,879

• Date Filed

  Not available

• Date Issued

  Tuesday, November 29, 1949
  75 years ago

• CPC

  • E05F1/004 - by thermostats, rain, wind or noise
  • E05Y2900/146 - Shutters

• US Classifications

  • 049 - Movable or removable closures
  • 047 - Plant husbandry
  • 160 - Flexible or portable closure, partition, or panel
  • 236 - Automatic temperature and humidity regulation