Granted Patent
Utility
US 4,010,336 · App. 05/487,215
Hand lamp
Inventor:
Tony Trevithick
Patented Case
View Patent ↗
Granted: Mar 1, 1977
Filed: Jul 10, 1974
Inventor
Tony Trevithick
Assignee (at issue)
Daniel Woodhead, Inc.
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.