Granted Patent
Utility
US 4,378,294 · App. 06/244,382
Filament wound well screen and method and apparatus for making same
Inventors:
Walter R. Wagner, Henry E. Benson
Patented Case
View Patent ↗
Granted: Mar 29, 1983
Filed: Mar 16, 1981
Inventors
Walter R. Wagner
Henry E. Benson
Assignee (at issue)
UOP LLC
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.