IP Library Granted Patent US 6,820,613
Granted Patent Utility
US 6,820,613 · App. 10/390,408

Process and device for controlling the breathing gas supply

Inventors: Ullrich Wenkebach, Dieter Weismann
Patented Case View Patent ↗
Granted: Nov 23, 2004 Filed: Mar 17, 2003
Inventors
Ullrich Wenkebach
Dieter Weismann
Assignee (at issue)
Dräger Medical AG & Co. KG

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 6,820,613
App. No.
10/390,408
Filed
2003-03-17
Granted
2004-11-23
Kind
B2