IP Library › Granted Patent US 4,754,842
Granted Patent Utility
US 4,754,842 · App. 07/148,474

Ladder safety device

Inventor: Don L. Southern
Patented Case View Patent ↗
Granted: Jul 5, 1988 Filed: Jan 26, 1988
Inventor
Don L. Southern

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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 4,754,842
App. No.
07/148,474
Filed
1988-01-26
Granted
1988-07-05
Kind
A