Expired, full termArchiveSolo inventor
Device for operating on flat articles
US 1,799,655 A · Inventors: STROBEL CHARLES K
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 April 7, 1931. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by April 7, 1948.
- We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledMarch 20, 1930
GrantedApril 7, 1931
Term endedApril 7, 1948
Application number—
Classification (CPC)H10D48/076
Length3 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.