Granted Patent
Utility
US 4,512,018 · App. 06/473,274
Shifter circuit
Inventors:
Andrew Everett Phelps, Allen Ta-Ming Wu
Patented Case
View Patent ↗
Granted: Apr 16, 1985
Filed: Mar 8, 1983
Inventors
Andrew Everett Phelps
Allen Ta-Ming Wu
Assignee (at issue)
Burroughs, 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.