Expired, full termArchiveSolo inventor
Throw wheel for snow removers
US 2,794,271 A · Inventors: WALLACK FRANZ F
Overview
5 drawing sheets
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 June 4, 1957. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by June 4, 1974.
- We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledDecember 8, 1950
GrantedJune 4, 1957
Term endedJune 4, 1974
Application number—
Classification (CPC)E01H5/098
Length8 pages
Sources & verification
Official USPTO records
Cross-check elsewhere
Everything on this page comes from the USPTO record linked above.