DeltaHawk Engines, Inc.
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
0
Ending by 2030
Dec 2031
Next term end
When these terms end
Held patents by the year their term ends
20262027202820292030203120322033203420352036203720382039204020412042204320442045
Fee deadlines
Maintenance fees fall due 3.5, 7.5 and 11.5 years after grant. A missed fee ends a patent at the end of the six month grace period that follows, not on the due date.
- 1 fee due Feb 8, 2027The maintenance fee for Engine cylinder with liner (US 11,719,182) comes due Feb 8, 2027. Unpaid by Aug 9, 2027, it lapses early.
- 1 fee due Apr 29, 2027The maintenance fee for Two-cycle diesel engine configured for operation with high temperature combustion chamber surfaces (US 10,458,307) comes due Apr 29, 2027. Unpaid by Oct 29, 2027, it lapses early.
- 1 fee due Jun 5, 2027The maintenance fee for Piston assembly with wrist pin cap (US 11,835,135) comes due Jun 5, 2027. Unpaid by Dec 6, 2027, it lapses early.
Recent changes
Nothing was recorded against this company's patents in the last 90 days.
Patents held now
Soonest term end first. Each date below is computed on that patent's own page, which shows the rule, the adjustments and the fee history it was derived from.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 8,371,279 | Crankcase pressure regulator for an internal combustion engine In force · From the USPTO record | In force | From the USPTO record | |
| US 10,458,307 | Two-cycle diesel engine configured for operation with high temperature combustion chamber surfaces In force · From the USPTO record | In force | From the USPTO record | |
| US 10,711,681 | Two-cycle diesel engine configured for operation with high temperature combustion chamber surfaces In force · From the USPTO record | In force | From the USPTO record | |
| US 12,650,106 | Port Assembly for 2-Stroke Diesel Engine In force · Medium confidence | In force | Medium confidence | |
| US 11,835,135 | Piston assembly with wrist pin cap In force · From the USPTO record | In force | From the USPTO record | |
| US 11,719,182 | Engine cylinder with liner In force · From the USPTO record | In force | From the USPTO record | |
| US 12,110,836 | Engine Cylinder with Liner In force · Medium confidence | In force | Medium confidence | |
| US 12,435,678 | Engine Cylinder with Liner In force · Low confidence | In force | Low confidence | |
| US 12,031,463 | Separator for liquid and gas In force · From the USPTO record | In force | From the USPTO record | |
| US 12,292,013 | Piston Assembly with Gapless Oil Control Ring In force · High confidence | In force | High confidence |
Also on record, not counted in the 12: 1 lapsed for an unpaid fee · 3 ended at full term · 2 surrendered on reissue. List them
Sources and methods
Compiled from the USPTO record, grants, published applications and recorded assignments, not yet reviewed by hand.
How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
Published applications
US patent applications published under this name that have not become patents. An application is published about eighteen months after its earliest filing; one that has not been published is in no public record.
1 pending · 5 no status recorded