Patent Yard Sign in
Expired design patentArchiveSolo inventor

Musical drum

US D242,875 S · Inventors: Clements; Albert J. 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 December 28, 1976. A US design patent lasts 14 years from grant (15 if filed from May 13, 2015), so this one ended December 28, 1990.
  • A design patent protects only how a product looks. We check US rights only.
FiledNovember 14, 1974
GrantedDecember 28, 1976
Term endedDecember 28, 1990
Application number05/523699
Classification (CPC)—
Length2 pages

Timeline

Timeline From USPTO dates

1977197919811983198519871989Design grantedDec 28, 1976Term endedDec 28, 1990

Sources & verification