Expired design patentArchive
Air flow senser for motorcar
US D447,972 S · Assignee: Hitachi, Ltd. · Inventors: Igarashi; Shinya 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 September 18, 2001. A US design patent lasts 14 years from grant (15 if filed from May 13, 2015), so this one ended September 18, 2015.
- A design patent protects only how a product looks. We check US rights only.
FiledAugust 21, 2000
GrantedSeptember 18, 2001
Term endedSeptember 18, 2015
Application numberD/128145
Classification (CPC)—
Length5 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.