Granted Patent
Utility
US 5,299,142 · App. 07/863,567
Method and apparatus for determining the fullness of a waste compactor
Inventors:
Ronald L. Brown, Rick J. Hemingway
Patented Case
View Patent ↗
Granted: Mar 29, 1994
Filed: Apr 6, 1992
Inventors
Ronald L. Brown
Rick J. Hemingway
Assignee (at issue)
Marathon Equipment Company
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.