Granted Patent
Utility
US 5,992,252 · App. 09/026,461
Constant force side button engagement mechanism
Inventor:
Russell S. Krajec
Patented Case
View Patent ↗
Granted: Nov 30, 1999
Filed: Feb 19, 1998
Inventor
Russell S. Krajec
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.