Granted Patent
Utility
US 4,590,877 · App. 06/706,740
Shape forming and quilting method
Inventor:
Michael Schwarzberger
Patented Case
View Patent ↗
Granted: May 27, 1986
Filed: Feb 28, 1985
Inventor
Michael Schwarzberger
Assignee (at issue)
ABM Industries Incorporated
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.