Granted Patent
Utility
US 6,543,301 · App. 09/733,113
Impactor nozzle plate
Inventors:
Virgil A. Marple, Daryl L. Roberts
Patented Case
View Patent ↗
Granted: Apr 8, 2003
Filed: Dec 8, 2000
Inventors
Virgil A. Marple
Daryl L. Roberts
Assignee (at issue)
MSP 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.