Granted Patent
Utility
US 4,714,812 · App. 06/731,981
Apparatus and method for processing dielectric materials with microwave energy
Inventors:
Duane B. Haagensen, Darcy Moses, Leonard S. Smith
Patented Case
View Patent ↗
Granted: Dec 22, 1987
Filed: May 8, 1985
Inventors
Duane B. Haagensen
Darcy Moses
Leonard S. Smith
Assignee (at issue)
John F. Woodhead, III
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.