IP Library › Granted Patent US 4,872,817
Granted Patent Utility
US 4,872,817 · App. 06/632,761

Integral deflection washer compressor wheel

Inventor: Jack De Kruif
Patented Case View Patent ↗
Granted: Oct 10, 1989 Filed: Jul 19, 1984
Inventor
Jack De Kruif
Assignee (at issue)
AlliedSignal, Inc.

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 4,872,817
App. No.
06/632,761
Filed
1984-07-19
Granted
1989-10-10
Kind
A