Granted Patent
Utility
US 4,599,778 · App. 06/643,476
Installing or centering mechanism for pipes to be screwed into one another
Inventors:
Wilfried Dreyfuss, Thomas E. Remp, Kurt Muller
Patented Case
View Patent ↗
Granted: Jul 15, 1986
Filed: Apr 30, 1984
Inventors
Wilfried Dreyfuss
Thomas E. Remp
Kurt Muller
Assignees (at issue)
Wilfried Dreyfuss
Thomas E. Remp
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.