Granted Patent
Utility
US 4,998,662 · App. 07/331,149
Fastener-driving and batten-positioning machine
Inventors:
Syed R. Hasan, John R. Beach
Patented Case
View Patent ↗
Granted: Mar 12, 1991
Filed: Mar 31, 1989
Inventors
Syed R. Hasan
John R. Beach
Assignee (at issue)
ILLINOIS TOOL WORKS 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.