Granted Patent
Utility
US 4,226,776 · App. 06/095,277
Preparation of arylene-bis-maleimides
Inventor:
Raymond D. Clark
Patented Case
View Patent ↗
Granted: Oct 7, 1980
Filed: Nov 19, 1979
Inventor
Raymond D. Clark
Assignee (at issue)
EASTMAN KODAK 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.