Granted Patent
Utility
US 5,069,418 · App. 07/461,354
Device for leveling concrete form assemblies
Inventor:
Albert L. Jennings
Patented Case
View Patent ↗
Granted: Dec 3, 1991
Filed: Jan 5, 1990
Inventor
Albert L. Jennings
Assignee (at issue)
Economy Forms 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.