Expired, full termArchiveSolo inventor
Typewriter construction
US 1,572,159 A · Inventors: ROSE GEORGE F
Overview
1 drawing sheet
Every sheet is in the USPTO PDF.
Open the USPTO PDFRead 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 February 9, 1926. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by February 9, 1943.
- We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledDecember 19, 1921
GrantedFebruary 9, 1926
Term endedFebruary 9, 1943
Application number—
Classification (CPC)B41J7/24
Length4 pages
Sources & verification
Official USPTO records
Cross-check elsewhere
Everything on this page comes from the USPTO record linked above.