Granted Patent
Utility
US 4,506,010 · App. 06/330,640
Method for testing microbial degradation of cellulose
Inventors:
Nelson Goodman, Brian C. Cunningham
Patented Case
View Patent ↗
Granted: Mar 19, 1985
Filed: Dec 14, 1981
Inventors
Nelson Goodman
Brian C. Cunningham
Assignee (at issue)
Stauffer Chemical 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.