Granted Patent
Utility
US 5,134,838 · App. 07/559,156
Mower pick-up broom
Inventors:
Max B. Swisher, David A. Burnham
Patented Case
View Patent ↗
Granted: Aug 4, 1992
Filed: Jul 20, 1990
Inventors
Max B. Swisher
David A. Burnham
Assignee (at issue)
Swisher Mower & Machine Co., 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.