Granted Patent
Utility
US 4,881,324 · App. 07/292,055
Apparatus for linear measurements
Inventor:
Henry Khinchuk
Patented Case
View Patent ↗
Granted: Nov 21, 1989
Filed: Dec 30, 1988
Inventor
Henry Khinchuk
Assignee (at issue)
GTE Valenite 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.