Granted Patent
Utility
US 4,904,343 · App. 06/797,539
Non-woven activated carbon fabric
Inventors:
Robert D. Giglia, Edward A. Battistelli
Patented Case
View Patent ↗
Granted: Feb 27, 1990
Filed: Nov 13, 1985
Inventors
Robert D. Giglia
Edward A. Battistelli
Assignee (at issue)
American Cyanamid 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.