IP Library Granted Patent US 5,993,155
Granted Patent Utility
US 5,993,155 · App. 09/034,231

Cooled gas-turbine blade

Inventors: Wilhelm Endres, Hans Wettstein
Patented Case View Patent ↗
Granted: Nov 30, 1999 Filed: Mar 4, 1998
Inventors
Wilhelm Endres
Hans Wettstein
Assignee (at issue)
Asea Brown Boveri, S.A.

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 5,993,155
App. No.
09/034,231
Filed
1998-03-04
Granted
1999-11-30
Kind
A