Granted Patent
Utility
US 4,077,102 · App. 05/700,355
Tube extracting mechanism
Inventor:
Joseph W. Smith
Patented Case
View Patent ↗
Granted: Mar 7, 1978
Filed: Jun 28, 1976
Inventor
Joseph W. Smith
Assignee (at issue)
CARRIER 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.