Granted Patent
Utility
US 5,336,787 · App. 08/011,552
Process of making selected poly(dianhydrides) compounds
Inventors:
Murray A. Ruggiero, Renata C. Stegmeier, Bruce A. Marien, Keith Wilbourn
Patented Case
View Patent ↗
Granted: Aug 9, 1994
Filed: Feb 1, 1993
Inventors
Murray A. Ruggiero
Renata C. Stegmeier
Bruce A. Marien
Keith Wilbourn
Assignee (at issue)
Olin 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.