Granted Patent
Utility
US 5,223,689 · App. 07/692,987
Profiles to insure proper heating function
Inventors:
Mark J. Cowell, Thomas H. McGaffigan, James C. Swift
Patented Case
View Patent ↗
Granted: Jun 29, 1993
Filed: Apr 29, 1991
Inventors
Mark J. Cowell
Thomas H. McGaffigan
James C. Swift
Assignee (at issue)
Metcal, 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.