Granted Patent
Utility
US 4,990,846 · App. 07/498,511
Temperature compensated voltage reference circuit
Inventors:
Paul E. Buck, Robert J. Campbell, Debra E. Poppas, John Robert Shreve, Richard J. Voss
Patented Case
View Patent ↗
Granted: Feb 5, 1991
Filed: Mar 26, 1990
Inventors
Paul E. Buck
Robert J. Campbell
Debra E. Poppas
John Robert Shreve
Richard J. Voss
Assignee (at issue)
DELCO ELECTRONICS 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.