Granted Patent
Utility
US 4,528,998 · App. 06/669,236
Button latch for telescoped tubes
Inventor:
Paul B. Gamm
Patented Case
View Patent ↗
Granted: Jul 16, 1985
Filed: Nov 7, 1984
Inventor
Paul B. Gamm
Assignee (at issue)
Jung GmbH
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.