Granted Patent
Utility
US 4,671,880 · App. 06/818,501
Method for inhibiting aluminum-based deposition in water systems
Inventors:
Allison T. Wisener, Pamela J. Peerce-Landers
Patented Case
View Patent ↗
Granted: Jun 9, 1987
Filed: Jan 10, 1986
Inventors
Allison T. Wisener
Pamela J. Peerce-Landers
Assignee (at issue)
Betz Laboratories, 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.