IP Library › Granted Patent US 5,301,423
Granted Patent Utility
US 5,301,423 · App. 08/089,109

One piece cylinder head and liner including a draftless water jacket and method for making same

Inventors: Richard J. Clark, Richard Clark, Dennis E. Clark
Patented Case View Patent ↗
Granted: Apr 12, 1994 Filed: Jul 12, 1993
Inventors
Richard J. Clark
Richard Clark
Dennis E. Clark
Assignee (at issue)
Clarke Industries, 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 5,301,423
App. No.
08/089,109
Filed
1993-07-12
Granted
1994-04-12
Kind
A