Granted Patent
Utility
US 4,964,256 · App. 07/461,352
Beam member for concrete forming system
Inventor:
Robert McCracken
Patented Case
View Patent ↗
Granted: Oct 23, 1990
Filed: Jan 5, 1990
Inventor
Robert McCracken
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.