Patent Yard Sign in
Expired design patentArchive

Decorative louver

US D275,706 S · Assignee: Double D Specialties, Inc. · Inventors: Trombley; Ulric W. et al.

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 September 25, 1984. A US design patent lasts 14 years from grant (15 if filed from May 13, 2015), so this one ended September 25, 1998.
  • A design patent protects only how a product looks. We check US rights only.
FiledFebruary 8, 1982
GrantedSeptember 25, 1984
Term endedSeptember 25, 1998
Application number06/346904
Classification (CPC)—
Length2 pages

Timeline

Timeline From USPTO dates

1985198719891991199319951997Design grantedSep 25, 1984Term endedSep 25, 1998

Sources & verification