Granted Patent
Utility
US 5,494,516 · App. 08/095,125
Workable cementitious compositions
Inventors:
Josef F. Drs, Tom Melbye, Odd M. Tjugum, Salvatore Valenti
Patented Case
View Patent ↗
Granted: Feb 27, 1996
Filed: Jul 20, 1993
Inventors
Josef F. Drs
Tom Melbye
Odd M. Tjugum
Salvatore Valenti
Assignee (at issue)
Sandoz 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.