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US 2,582,811 A · Inventors: WILLIAMS HARVEY L
Overview
The published document from the USPTO: abstract, claims, description and drawings. 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 January 15, 1952. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by January 15, 1969.
- We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledJanuary 31, 1947
GrantedJanuary 15, 1952
Term endedJanuary 15, 1969
Application number—
Classification (CPC)A41D13/012 +2 more
Length6 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.