Granted Patent
Utility
US 5,762,701 · App. 07/973,870
Pozzolanic compositions
Inventors:
Stefano Biagini, Mario Collepardi
Patented Case
View Patent ↗
Granted: Jun 9, 1998
Filed: Nov 10, 1992
Inventors
Stefano Biagini
Mario Collepardi
Assignee (at issue)
MBT Holding AG
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.