Granted Patent
Utility
US 4,801,216 · App. 06/898,340
Device for generating a prestress when two connection parts are coupled rigidly
Inventors:
Heinrich Lageder, Jaroslav Masek, Kamil Prochazka
Patented Case
View Patent ↗
Granted: Jan 31, 1989
Filed: Aug 20, 1986
Inventors
Heinrich Lageder
Jaroslav Masek
Kamil Prochazka
Assignee (at issue)
BBC Brown, Boveri & Company Ltd.
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.