Expired design patentArchive
Frame containing ceramic block for producing dental crowns and bridges
US D627,889 S · Assignee: 3M Innovative Properties Company · Inventors: Wagner; Ingo W. 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 November 23, 2010. A US design patent lasts 14 years from grant (15 if filed from May 13, 2015), so this one ended November 23, 2024.
- A design patent protects only how a product looks. We check US rights only.
FiledApril 13, 2009
GrantedNovember 23, 2010
Term endedNovember 23, 2024
Application numberD/335299
Classification (CPC)—
Length6 pages
Timeline
Timeline From USPTO dates
Sources & verification
Official USPTO records
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