Expired design patentArchiveSolo inventor
Display surface of the drug effect on brain capillary blood flow and nerve impulse transmission demonstrator
US D272,833 S · Inventors: van Assche; Daniel et al.
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 February 28, 1984. A US design patent lasts 14 years from grant (15 if filed from May 13, 2015), so this one ended February 28, 1998.
- A design patent protects only how a product looks. We check US rights only.
FiledNovember 4, 1981
GrantedFebruary 28, 1984
Term endedFebruary 28, 1998
Application number06/318215
Classification (CPC)—
Length2 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.