IP Library › Granted Patent US 4,768,139
Granted Patent Utility
US 4,768,139 · App. 07/042,762

Lighting fixture

Inventor: Charles B. Poppenheimer
Patented Case View Patent ↗
Granted: Aug 30, 1988 Filed: Apr 27, 1987
Inventor
Charles B. Poppenheimer
Assignee (at issue)
GTY Industries

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 4,768,139
App. No.
07/042,762
Filed
1987-04-27
Granted
1988-08-30
Kind
A