IP Library Granted Patent US 4,627,839
Granted Patent Utility
US 4,627,839 · App. 06/800,281

Patient controlled analgesia conversion

Inventor: Joe W. Young
Patented Case View Patent ↗
Granted: Dec 9, 1986 Filed: Nov 21, 1985
Inventor
Joe W. Young
Assignee (at issue)
American Hospital Supply Corp.

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 4,627,839
App. No.
06/800,281
Filed
1985-11-21
Granted
1986-12-09
Kind
A