Granted Patent
Utility
US 4,826,149 · App. 07/054,295
Mechanical double caliper
Inventor:
DANIEL ANTHONY TUCKER
Patented Case
View Patent ↗
Granted: May 2, 1989
Filed: May 26, 1987
Inventor
DANIEL ANTHONY TUCKER
Assignee (at issue)
AM International, 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.