Granted Patent
Utility
US 4,596,834 · App. 06/701,842
Water resistant foamed product prepared from a latex, a mineral acid, hydraulic cement, filler, aggregate and stabilizer
Inventors:
Joseph Widener, Russell M. Malone
Patented Case
View Patent ↗
Granted: Jun 24, 1986
Filed: Feb 14, 1985
Inventors
Joseph Widener
Russell M. Malone
Assignee (at issue)
The Babcock & Wilcox Company
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.