Granted Patent
Utility
US 4,895,090 · App. 07/308,572
Lost motion compensation for sewing machine needle vibrating gate
Inventors:
Kenneth D. Adams, John Cain Blackwood
Patented Case
View Patent ↗
Granted: Jan 23, 1990
Filed: Feb 10, 1989
Inventors
Kenneth D. Adams
John Cain Blackwood
Assignee (at issue)
SSMC Inc.
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.