Granted Patent
Utility
US 5,588,901 · App. 08/351,310
Cleaning method and apparatus utilizing sodium bicarbonate particles
Inventors:
Arthur C. Rubey, III, Andrew M. Taylor, William E. Spears, Jr.
Patented Case
View Patent ↗
Granted: Dec 31, 1996
Filed: Dec 14, 1994
Inventors
Arthur C. Rubey, III
Andrew M. Taylor
William E. Spears, Jr.
Assignee (at issue)
Yelapa 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.