Patent Blog
  • Contribute
  • Recommend
  • Subscribe
  • Login
  • Our Services

TODAY’S PATENT – BLACKBOARD ERASER

  • Older
  • Newer

TODAY’S PATENT – BLACKBOARD ERASER

Oliver R. Odhner received his patent for the invention, “Blackboard eraser” (US4007509A), by the USPTO on 14th February 1977.

 

The present invention relates to an improved eraser for cleaning blackboards. This invention comprises of an eraser having a handle fabricated from plastic and several rows of fiberglass filaments which are used to scrape off the chalk when the device is moved back and forth over the surface of the board.

 

The major objective of the invention to provide an eraser that effectively scrapes off the chalk without releasing the dust into the air. It also prevents the dispersion of dust in the air.

By Lex Protector

  • Categories
    Today's Patent
  • Author

    Lex Protector

Leave a Reply Cancel Reply

Your email address will not be published. Required fields are marked *

Related Posts

TODAY’S PATENT- ASSEMBLY FOR DETERMINING IF HANGING PLANTS NEED TO BE WATERED

TODAY’S PATENT – BABY’S COMPANION AND SECURITY BLANKET

TODAY’S PATENT- FISHING ROD

Lex Protector

International Law Office

🇺🇸 +1 888 890 6411

Ip Enforcement

  • Copyright Enforcement
  • Utility Patent Enforcement
  • Design Patent Enforcement
  • Trademark Enforcement

Copyright Registration

  • USA Copyright Registration
  • Indian Copyright Registration
  • Amazon Brand Registration

Subscribe

© Copyright 2020. All rights Reserved

  • Terms & Conditions
  • Privacy Policy

Contribute

Recommend

    Subscribe