Expired design patentArchive
Gas cylinder for medical purposes
US D643,124 S · Assignee: Luxfer Gas Cylinders Limited · Inventors: Basford; Adrian Nicholas 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 August 9, 2011. A US design patent lasts 14 years from grant (15 if filed from May 13, 2015), so this one ended August 9, 2025.
- A design patent protects only how a product looks. We check US rights only.
FiledOctober 22, 2009
GrantedAugust 9, 2011
Term endedAugust 9, 2025
Application numberD/316695
Classification (CPC)—
Length7 pages
Timeline
Timeline From USPTO dates
Sources & verification
Official USPTO records
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Everything on this page comes from the USPTO record linked above.