IP Library › Patent Application 09979439
Patent Application Utility PCT National Stage
App. No. 09/979,439 · Confirmation No. 4387

METHOD FOR OPERATING A FOUR-STROKE RECIPROCATING INTERNAL COMBUSTION ENGINE WITH ALTERNATING COMPRESSION IGNITION AND EXTERNALLY SUPPLIED IGNITION

Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 View Patent ↗
⬇ PDF
 Code Description Pages PDF
2003-09-26 IFEE Issue Fee Payment (PTO-85B) 1 View
2002-02-15 ABST Abstract 1 View
2002-02-15 LET. Miscellaneous Incoming Letter 34 View
Monitor This Case
Get email alerts when status or documents change.
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 application's details
Quick Facts
App. No.
09/979,439
Filed
2002-02-15
Effective Filing
2001-11-19
Granted
2003-11-25
Art Unit
3747
PTA
0 days