Granted Patent
Utility
US 5,595,449 · App. 08/576,823
Inflatable keyboard
Inventor:
Lev M. Vitkin
Patented Case
View Patent ↗
Granted: Jan 21, 1997
Filed: Dec 21, 1995
Inventor
Lev M. Vitkin
Assignee (at issue)
DELCO ELECTRONICS CORPORATION
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.