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Expired design patentArchiveSolo inventor

Diamond ring

US D248,286 S · Inventors: Barr; Josef J.

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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 June 27, 1978. A US design patent lasts 14 years from grant (15 if filed from May 13, 2015), so this one ended June 27, 1992.
  • A design patent protects only how a product looks. We check US rights only.
FiledJune 21, 1976
GrantedJune 27, 1978
Term endedJune 27, 1992
Application number05/698178
Classification (CPC)—
Length2 pages

Timeline

Timeline From USPTO dates

1979198119831985198719891991Design grantedJune 27, 1978Term endedJune 27, 1992

Sources & verification