Granted Patent
Utility
US 5,651,997 · App. 08/712,798
Antacid compositions
Inventors:
Tadashi Makino, Shigeyuki Marunaka, Soichiro Imoto
Patented Case
View Patent ↗
Granted: Jul 29, 1997
Filed: Sep 12, 1996
Inventors
Tadashi Makino
Shigeyuki Marunaka
Soichiro Imoto
Assignee (at issue)
Takeda Chemical Industries Ltd.
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.