Granted Patent
Utility
US 4,440,215 · App. 06/274,674
Heat pipe
Inventors:
George M. Grover, James Runyan
Patented Case
View Patent ↗
Granted: Apr 3, 1984
Filed: Jun 17, 1981
Inventors
George M. Grover
James Runyan
Assignee (at issue)
Q-Dot, 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.