Patent Yard Sign in
Expired design patentArchive

Welding helmet collar portion

US D592,811 S · Assignee: 3M Innovative Properties Company · Inventors: Juhlin; Oskar E.

USPTO PDF

Overview

The published document from the USPTO: abstract, claims, description. Open it full size

Read the whole patent

Listed from its USPTO record in Patent Yard's full-term archive. Its claims, description and drawings are in the USPTO PDF and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Granted May 19, 2009. A US design patent lasts 14 years from grant (15 if filed from May 13, 2015), so this one ended May 19, 2023.
  • A design patent protects only how a product looks. We check US rights only.
FiledNovember 15, 2007
GrantedMay 19, 2009
Term endedMay 19, 2023
Application numberD/297648
Classification (CPC)—
Length7 pages

Timeline

Timeline From USPTO dates

2010201220142016201820202022Design grantedMay 19, 2009Term endedMay 19, 2023

Sources & verification