Granted Patent
Utility
US 5,167,967 · App. 07/702,310
Machine for making concrete pipes
Inventor:
Tarek A. Adly
Patented Case
View Patent ↗
Granted: Dec 1, 1992
Filed: May 20, 1991
Inventor
Tarek A. Adly
Assignee (at issue)
International Pipe Machinery Corporation
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.