Expired design patentArchive
Rotor for heater
US D420,122 S · Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho · Inventors: Moroi; Takahiro 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 1, 2000. A US design patent lasts 14 years from grant (15 if filed from May 13, 2015), so this one ended February 1, 2014.
- A design patent protects only how a product looks. We check US rights only.
FiledAugust 14, 1997
GrantedFebruary 1, 2000
Term endedFebruary 1, 2014
Application numberD/075047
Classification (CPC)—
Length5 pages
Timeline
Timeline From USPTO dates
Sources & verification
Official USPTO records
Cross-check elsewhere
Everything on this page comes from the USPTO record linked above.