Granted Patent
Utility
US 5,525,474 · App. 08/190,348
Piperidine analogs and conjugates of procainamide and NAPA
Inventors:
Gerald Sigler, Charles F. Walter, Todd P. Glancy, Erasmus Huber, Frank E. Klein
Patented Case
View Patent ↗
Granted: Jun 11, 1996
Filed: Jan 31, 1994
Inventors
Gerald Sigler
Charles F. Walter
Todd P. Glancy
Erasmus Huber
Frank E. Klein
Assignee (at issue)
Boehringer Mannheim GmbH
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.