Granted Patent
Utility
US 4,374,791 · App. 06/306,199
Process for preparing particleboard
Inventors:
William J. Farrissey, Jr., Alexander McLaughlin, Douglas P. Waszeciak
Patented Case
View Patent ↗
Granted: Feb 22, 1983
Filed: Sep 28, 1981
Inventors
William J. Farrissey, Jr.
Alexander McLaughlin
Douglas P. Waszeciak
Assignee (at issue)
The Upjohn Co.
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.