IP Library › Granted Patent US 5,178,103
Granted Patent Utility
US 5,178,103 · App. 03/362,151

Variable compression ratio piston

Inventor: Aladar O. Simko
Patented Case View Patent ↗
Granted: Jan 12, 1993 Filed: Dec 23, 1991
Inventor
Aladar O. Simko
Assignee (at issue)
Ford Motor Company

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 5,178,103
App. No.
03/362,151
Filed
1991-12-23
Granted
1993-01-12
Kind
A