Granted Patent
Utility
US 4,451,594 · App. 06/474,081
Film former emulsification
Inventor:
Leslie E. Campbell
Patented Case
View Patent ↗
Granted: May 29, 1984
Filed: Mar 10, 1983
Inventor
Leslie E. Campbell
Assignee (at issue)
Owens-Corning Fiberglas Corp.
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.