Granted Patent
Utility
US 4,668,731 · App. 06/762,176
Stable carboxylic acid polymers in mineral spirits
Inventors:
Robert Y. Lochhead, Thomas R. George, Jr., William L. Banks
Patented Case
View Patent ↗
Granted: May 26, 1987
Filed: Aug 5, 1985
Inventors
Robert Y. Lochhead
Thomas R. George, Jr.
William L. Banks
Assignee (at issue)
B. F. Goodrich 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.