Granted Patent
Utility
US 4,648,325 · App. 06/747,054
Linear drive unit
Inventors:
Stanley K. Gutekunst, Russell H. Scheel, Barry L. Ziegenfus
Patented Case
View Patent ↗
Granted: Mar 10, 1987
Filed: Jun 20, 1985
Inventors
Stanley K. Gutekunst
Russell H. Scheel
Barry L. Ziegenfus
Assignee (at issue)
Heico 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.