Granted Patent
Utility
US 4,640,730 · App. 06/715,138
Method of adhering roofing materials
Inventors:
Roger L. Streets, Thomas G. Rabito, David N. Peresie
Patented Case
View Patent ↗
Granted: Feb 3, 1987
Filed: Mar 22, 1985
Inventors
Roger L. Streets
Thomas G. Rabito
David N. Peresie
Assignee (at issue)
Ashland Oil, 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.