Granted Patent
Utility
US 4,241,035 · App. 06/054,650
Synthetic imogolite
Inventor:
Victor C. Farmer
Patented Case
View Patent ↗
Granted: Dec 23, 1980
Filed: Jul 3, 1979
Inventor
Victor C. Farmer
Assignee (at issue)
NATIONAL RESEARCH DEVELOPMENT CORPORATION
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.