Granted Patent
Utility
US 4,636,149 · App. 06/858,823
Differential thermal expansion driven pump
Inventor:
David C. Brown
Patented Case
View Patent ↗
Granted: Jan 13, 1987
Filed: Apr 29, 1986
Inventor
David C. Brown
Assignee (at issue)
CORDIS 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.