Granted Patent
Utility
US 5,435,442 · App. 08/014,197
Dry fluid substance loading device
Inventor:
William A. Howell
Patented Case
View Patent ↗
Granted: Jul 25, 1995
Filed: Feb 5, 1993
Inventor
William A. Howell
Assignee (at issue)
Carl A. Dengel
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.