Expired design patentArchive
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US D258,792 S · Assignee: L. B. (Plastics) Limited · Inventors: Litchfield; Leon G. 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 April 7, 1981. A US design patent lasts 14 years from grant (15 if filed from May 13, 2015), so this one ended April 7, 1995.
- A design patent protects only how a product looks. We check US rights only.
FiledJanuary 27, 1978
GrantedApril 7, 1981
Term endedApril 7, 1995
Application number05/872958
Classification (CPC)—
Length4 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.