Granted Patent
Utility
US 4,637,946 · App. 06/799,220
Road repair membrane
Inventors:
Hasmukh G. Shah, Dwight Musgrave
Patented Case
View Patent ↗
Granted: Jan 20, 1987
Filed: Nov 18, 1985
Inventors
Hasmukh G. Shah
Dwight Musgrave
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.