Granted Patent
Utility
US 5,357,547 · App. 07/853,556
Vibration dampener for dampening vibration of a tubular member
Inventors:
Franklin D. Obermeyer, Willis B. Middlebrooks, Edmund E. DeMario
Patented Case
View Patent ↗
Granted: Oct 18, 1994
Filed: Mar 18, 1992
Inventors
Franklin D. Obermeyer
Willis B. Middlebrooks
Edmund E. DeMario
Assignee (at issue)
Westinghouse Electric Company 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.