Granted Patent
Utility
US 6,514,569 · App. 09/483,360
Variable volume positive displacement dispensing system and method
Inventor:
Kenneth C. Crouch
Patented Case
View Patent ↗
Granted: Feb 4, 2003
Filed: Jan 14, 2000
Inventor
Kenneth C. Crouch
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.