Expired, full termArchiveSolo inventor
Sheet-metal barrel and method of making same
US 1,441,674 A · Inventors: FOSTER HENRY J et al.
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 9, 1923. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by January 9, 1940.
- We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledJanuary 10, 1919
GrantedJanuary 9, 1923
Term endedJanuary 9, 1940
Application number—
Classification (CPC)B65D7/42 +2 more
Length3 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.