Granted Patent
Utility
US 4,511,348 · App. 06/391,773
Drive tensioning apparatus
Inventors:
Daniel C. Witdoek, Andre G. J. Dhont
Patented Case
View Patent ↗
Granted: Apr 16, 1985
Filed: Jun 24, 1982
Inventors
Daniel C. Witdoek
Andre G. J. Dhont
Assignee (at issue)
Sperry Corp.
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.