AES Engineering Ltd.
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
6
Ending by 2030
Jan 2028
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 Jan 2, 2027The maintenance fee for Mechanical seal assembly (US 10,337,616) comes due Jan 2, 2027. Unpaid by Jul 2, 2027, it lapses early.
- 1 fee due Feb 4, 2027The maintenance fee for Seal support system pressure tracking value (US 9,098,094) comes due Feb 4, 2027. Unpaid by Aug 4, 2027, it lapses early.
- 1 fee due May 17, 2027The maintenance fee for Valve (US 9,188,234) comes due May 17, 2027. Unpaid by Nov 17, 2027, it lapses early.
- 1 fee due Oct 5, 2027The maintenance fee for Cartridgised mixer seal (US 9,303,769) comes due Oct 5, 2027. Unpaid by Apr 5, 2028, 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 7,748,715 | Bearing seal In force · From the USPTO record | In force | From the USPTO record | |
| US 7,905,496 | Bearing protector for axial shaft movement In force · From the USPTO record | In force | From the USPTO record | |
| US 8,047,548 | Bearing alignment device and seal arrangement In force · From the USPTO record | In force | From the USPTO record | |
| US 7,857,321 | Bearing protector with air purge In force · From the USPTO record | In force | From the USPTO record | |
| US 8,955,848 | Mechanical seal In force · From the USPTO record | In force | From the USPTO record | |
| US 9,010,494 | Bearing lubrication In force · From the USPTO record | In force | From the USPTO record | |
| US 9,098,094 | Seal support system pressure tracking value In force · From the USPTO record | In force | From the USPTO record | |
| US 9,470,315 | Modular seal support system In force · From the USPTO record | In force | From the USPTO record | |
| US 8,939,413 | Seal Support System In force · High confidence | In force | High confidence | |
| US 9,188,234 | Valve In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 27: 7 lapsed for an unpaid fee · 21 ended at full term. 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.
20 no status recorded