Expired design patentArchive
Distributor plate for a pressure vessel
US D591,823 S · Assignee: Enpress LLC · Inventors: Stolarik; Douglas S. et al.
Overview
The published document from the USPTO: abstract, claims, description. Open it full size
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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 5, 2009. A US design patent lasts 14 years from grant (15 if filed from May 13, 2015), so this one ended May 5, 2023.
- A design patent protects only how a product looks. We check US rights only.
FiledAugust 6, 2007
GrantedMay 5, 2009
Term endedMay 5, 2023
Application numberD/283076
Classification (CPC)—
Length5 pages
Timeline
Timeline From USPTO dates
Sources & verification
Official USPTO records
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