Granted Patent
Utility
US 4,565,142 · App. 06/743,124
Sewing machine bed extension
Inventor:
Leo E. McGann
Patented Case
View Patent ↗
Granted: Jan 21, 1986
Filed: Jun 10, 1985
Inventor
Leo E. McGann
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.