Granted Patent
Utility
US 5,561,515 · App. 08/319,660
Apparatus for measuring particle sizes and velocities
Inventors:
Peter P. Hairston, Frank D. Dorman, Gilmore J. Sem, Jugal Agarwal
Patented Case
View Patent ↗
Granted: Oct 1, 1996
Filed: Oct 7, 1994
Inventors
Peter P. Hairston
Frank D. Dorman
Gilmore J. Sem
Jugal Agarwal
Assignee (at issue)
TSI Group Co., Ltd.
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.