Granted Patent
Utility
US 4,693,201 · App. 06/796,945
Low drag surface construction
Inventors:
John E. Williams, Jack Lang
Patented Case
View Patent ↗
Granted: Sep 15, 1987
Filed: Sep 12, 1985
Inventors
John E. Williams
Jack Lang
Assignee (at issue)
ROLLS-ROYCE plc
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.