Granted Patent
Utility
US 4,421,983 · App. 06/243,376
Method for measuring film thickness on wood panels using an IR analyzer
Inventors:
Ozzie Fogle, Harry E. Back
Patented Case
View Patent ↗
Granted: Dec 20, 1983
Filed: Mar 13, 1981
Inventors
Ozzie Fogle
Harry E. Back
Assignee (at issue)
Champion International Corporation Limited
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.