IP Library Granted Patent US 4,719,880
Granted Patent Utility
US 4,719,880 · App. 06/866,427

Two stroke cycle internal combustion engines

Inventors: Christopher K. Schlunke, Robert M. Davis
Patented Case View Patent ↗
Granted: Jan 19, 1988 Filed: May 23, 1986
Inventors
Christopher K. Schlunke
Robert M. Davis
Assignee (at issue)
Orbital Engine Company Pty Limited

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 4,719,880
App. No.
06/866,427
Filed
1986-05-23
Granted
1988-01-19
Kind
A