Granted Patent
Utility
US 5,301,474 · App. 08/074,591
Roofing system for potable water
Inventors:
Jay F. Carey, II, Mehrooz Zamanzadeh
Patented Case
View Patent ↗
Granted: Apr 12, 1994
Filed: Jun 11, 1993
Inventors
Jay F. Carey, II
Mehrooz Zamanzadeh
Assignee (at issue)
Louis Berkman Company
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.