Expired, full termArchiveSolo inventor
Power-operated hand numbering machine
US 2,801,583 A · Inventors: LOUSHAY DAVID E
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 August 6, 1957. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by August 6, 1974.
- We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledDecember 2, 1954
GrantedAugust 6, 1957
Term endedAugust 6, 1974
Application number—
Classification (CPC)B41K1/16 +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.