IP Library › Granted Patent US 6,817,843
Granted Patent Utility
US 6,817,843 · App. 10/310,787

Ball check air vent for transmission pump

Inventors: Maurice B. Leising, Charles J. Redinger
Patented Case View Patent ↗
Granted: Nov 16, 2004 Filed: Dec 6, 2002
Inventors
Maurice B. Leising
Charles J. Redinger
Assignee (at issue)
Daimlerchrysler AG

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 6,817,843
App. No.
10/310,787
Filed
2002-12-06
Granted
2004-11-16
Kind
B2