Granted Patent
Utility
US 4,472,977 · App. 06/416,248
Fixed volume fluid sampler for pressurized process lines
Inventor:
Lewis G. Lynn
Patented Case
View Patent ↗
Granted: Sep 25, 1984
Filed: Sep 9, 1982
Inventor
Lewis G. Lynn
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.