Granted Patent
Utility
US 4,242,976 · App. 06/126,087
Precise positioner of buttonhole presser foot
Inventors:
Howard L. Beckerman, Russell J. Pepe, Allan M. Dob
Patented Case
View Patent ↗
Granted: Jan 6, 1981
Filed: Feb 29, 1980
Inventors
Howard L. Beckerman
Russell J. Pepe
Allan M. Dob
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.