Patent Yard Sign in
Expired, full termArchiveSolo inventor

Machine for folding collar blanks

US 1,605,689 A · Inventors: WILLIAM OXLEY FREDERICK et al.

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 November 2, 1926. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by November 2, 1943.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledMay 12, 1922
GrantedNovember 2, 1926
Term endedNovember 2, 1943
Application number—
Classification (CPC)A41H33/00
Length5 pages

Timeline

Timeline From USPTO dates

1923192619291932193519381941Application filedMay 12, 1922Patent grantedNov 2, 1926Term endedNov 2, 1943

Sources & verification