Granted Patent
Utility
US 4,314,876 · App. 06/130,938
Titanium etching solution
Inventors:
Lawrence N. Kremer, Matthew A. Boehmer
Patented Case
View Patent ↗
Granted: Feb 9, 1982
Filed: Mar 17, 1980
Inventors
Lawrence N. Kremer
Matthew A. Boehmer
Assignee (at issue)
DIVERSEY, 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.