Granted Patent
Utility
US 4,060,266 · App. 05/691,415
Surface bolt
Inventor:
Eric Wilkinson
Patented Case
View Patent ↗
Granted: Nov 29, 1977
Filed: Jun 1, 1976
Inventor
Eric Wilkinson
Assignee (at issue)
Leigh Products, 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.