3862464

Information

• Patent Grant
• 3862464

• References
• Source

• Patent Number

  3,862,464

• Date Filed

  Not available

• Date Issued

  Tuesday, January 28, 1975
  50 years ago

• CPC

  • A47L23/24 - Rigid cleaning-gratings Tread plates or scrapers for cleaning the soles of footwear
  • E04C2/422 - with continuous bars connecting at crossing points of the grid pattern
  • E04D13/12 - Devices or arrangements allowing walking on the roof or in the gutter
  • E04F19/10 - Built-in gratings

• US Classifications

  • 015 - Brushing, scrubbing, and general cleaning
  • 052 - Static structures