Granted Patent
Utility
US 4,524,009 · App. 06/575,421
Detergent builder
Inventor:
Vivian B. Valenty
Patented Case
View Patent ↗
Granted: Jun 18, 1985
Filed: Jan 31, 1984
Inventor
Vivian B. Valenty
Assignee (at issue)
A.E. Staley Manufacturing 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.