Granted Patent
Utility
US 4,530,648 · App. 06/601,717
Wall climbing form hoist
Inventor:
Jim Phillips
Patented Case
View Patent ↗
Granted: Jul 23, 1985
Filed: Apr 18, 1984
Inventor
Jim Phillips
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.