Granted Patent
Utility
US 4,246,856 · App. 06/057,241
Presser foot lift operable independently by manual or power devices
Inventors:
Eugene A. Sansone, Edward A. Sukovich
Patented Case
View Patent ↗
Granted: Jan 27, 1981
Filed: Jul 13, 1979
Inventors
Eugene A. Sansone
Edward A. Sukovich
Assignee (at issue)
The Singer Company Limited
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.