Liebert Corporation
132 more in force are now held by other companies
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
Recorded under 3 name spellings.
Recorded as renamed to Vertiv Corporation (2018)
2
Ending by 2030
Apr 2027
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 Sep 29, 2027The maintenance fee for Device and Methodology for the Removal of Heat from an Equipment Rack by Means of Heat Exchangers Mounted to a Door (US 9,297,571) comes due Sep 29, 2027. Unpaid by Mar 29, 2028, it lapses early.
Recent changes
- 2 terms have ended since Aug 17, 2026
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.
Showing 1 to 3 of 3
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,539,020 | Liquid Cooling Loops for Server Applications In force · High confidence | In force | High confidence | |
| US 9,297,571 | Device and Methodology for the Removal of Heat from an Equipment Rack by Means of Heat Exchangers Mounted to a Door In force · High confidence | In force | High confidence | |
| US 9,545,706 | Tool Suspension Device In force · Low confidence | In force | Low confidence |
Also on record, not counted in the 3: 132 patents in force now held by others · 14 lapsed for an unpaid fee · 87 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.
10 abandoned · 30 no status recorded