Granted Patent
Utility
US 5,132,156 · App. 07/490,126
Void filler
Inventors:
Anthony Trassare, Jr., George C. Boyse, Oliver L. Gee, Jr.
Patented Case
View Patent ↗
Granted: Jul 21, 1992
Filed: Mar 7, 1990
Inventors
Anthony Trassare, Jr.
George C. Boyse
Oliver L. Gee, Jr.
Assignee (at issue)
Down River International, 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.