Granted Patent
Utility
US 4,622,240 · App. 06/797,092
Process for manufacturing thick-film electrical components
Inventors:
Walter F. Yext, Edward A. Hayduk, Jr., Clark K. Fisher
Patented Case
View Patent ↗
Granted: Nov 11, 1986
Filed: Nov 12, 1985
Inventors
Walter F. Yext
Edward A. Hayduk, Jr.
Clark K. Fisher
Assignee (at issue)
Air Products and Chemicals, 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.