Patent Yard Sign in
Expired, full termArchiveSolo inventor

Apparatus for castrating animals

US 1,957,159 A · Inventors: LOUIS DAROUX

USPTO PDF

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 May 1, 1934. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by May 1, 1951.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledJanuary 6, 1931
GrantedMay 1, 1934
Term endedMay 1, 1951
Application number—
Classification (CPC)A61D1/06
Length4 pages

Timeline

Timeline From USPTO dates

1932193419361938194019421944194619481950Application filedJan 6, 1931Patent grantedMay 1, 1934Term endedMay 1, 1951

Sources & verification