Collateral for a security interest recorded Oct 26, 2021 (Umb Bank, N.A.).
Term ends Dec 5, 2026 · High confidence
20-year base term ends Dec 5, 2026
Held by Vertiv Corporation
Filed Dec 5, 2006 as application 11/633,753 · Granted Sep 1, 2009
Base term, 20 years from filing
Today
2006
2026
Clock starts
Dec 5, 2006
Dec 5, 2006
Term ends
Dec 5, 2026
Dec 5, 2026
Granted
Sep 1, 2009
Sep 1, 2009
base term
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
3 of 3
Maintenance fees paid
Three maintenance fees fall due, at 3.5, 7.5 and 11.5 years from grant. This counts the ones the record shows paid.
This patent's term is its 20-year base term, with no adjustment for prosecution delay. All three maintenance fees are recorded paid; no more fees are due. Confidence: High. from the record
How we calculated this date
One row per rule, each showing its own input and what it did to the date. A step we could not verify says so instead of resolving itself.
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Dec 5, 2006, when this application, 11/633,753, was filed | Dec 5, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | None on record | no cap applied | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Dec 5, 2026 | High confidence |
Assignments
Assignment documents as recorded at the USPTO, oldest first, with the reel and frame each was recorded at. A recorded assignment is a filed document, not a statement of current ownership, and the absence of a later one is not evidence that the last one still stands.
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Jan 5, 2007 Reel 18729, frame 972 | Hutchison, Hugh G. | Geist Manufacturing Inc.; Aphel Ltd. | Assignment of Assignor's Interest |
| Jan 5, 2007 reel/frame not recorded | Hutchison, Hugh G. | Geist Manufacturing Inc. | Assignment of Assignor's Interest |
| Jan 5, 2007 reel/frame not recorded | Hutchison, Hugh G. | Aphel Ltd. | Assignment of Assignor's Interest |
| May 16, 2014 Reel 32908, frame 669 | Aphel Limited | Eaton Electric Limited | Assignment of Assignor's Interest |
| Feb 14, 2018 Reel 44922, frame 729 | Geist Manufacturing, Inc. | Plastic Companies Enterprises, Inc. | Merger |
| Feb 14, 2018 Reel 44928, frame 481 | Pce, Inc. | Liebert Corporation | Assignment of Assignor's Interest |
| Feb 14, 2018 Reel 45929, frame 634 | Plastic Companies Enterprises, Inc. | Pce, Inc. | Merger |
| Sep 28, 2018 Reel 47011, frame 1 | Liebert Corporation; Vertiv Corporation | Vertiv Corporation | Merger and Change of Name |
| Jun 10, 2019 Reel 49415, frame 262 | Vertiv IT Systems, Inc.; Vertiv Corporation; Vertiv North America, Inc.; Electrical Reliability Services, Inc.; Vertiv Energy Systems, Inc. | The Bank of New York Mellon Trust Company, N.A. | Second Lien Security Agreement |
| Mar 2, 2020 Reel 52071, frame 913 | The Bank of New York Mellon Trust Company N.A. | Vertiv Corporation; Vertiv IT Systems, Inc.; Electrical Reliability Services, Inc. | Release of Security Interest |
| Mar 2, 2020 reel/frame not recorded | The Bank of New York Mellon Trust Company N.A. | Vertiv Corporation | Release of Security Interest |
| Mar 2, 2020 reel/frame not recorded | The Bank of New York Mellon Trust Company N.A. | Vertiv IT Systems, Inc. | Release of Security Interest |
| Mar 2, 2020 reel/frame not recorded | The Bank of New York Mellon Trust Company N.A. | Electrical Reliability Services, Inc. | Release of Security Interest |
| Mar 3, 2020 Reel 52075, frame 497 | Energy Labs, Inc.; Vertiv Corporation; Vertiv IT Systems, Inc. | Jpmorgan Chase Bank, N.a. | Abl Security Agreement |
| Mar 3, 2020 Reel 52076, frame 874 | Electrical Reliability Services, Inc.; Energy Labs, Inc.; Vertiv Corporation; Vertiv IT Systems, Inc. | Citibank, N.a. | Security Agreement |
| Oct 26, 2021 Reel 57923, frame 782 | Vertiv Corporation; Vertiv IT Systems, Inc.; Electrical Reliability Services, Inc.; Energy Labs, Inc. | Umb Bank, N.A., as Collateral Agent | Security Interest |
| Mar 4, 2026 Reel 75022, frame 628 | JPMorgan Chase Bank, N.A., as Collateral Agent | Energy Labs, Inc.; Vertiv Corporation | Release of Security Interest |
| Mar 4, 2026 reel/frame not recorded | JPMorgan Chase Bank, N.A., as Collateral Agent | Energy Labs, Inc. | Release of Security Interest |
| Mar 4, 2026 reel/frame not recorded | JPMorgan Chase Bank, N.A., as Collateral Agent | Vertiv Corporation | Release of Security Interest |
| Mar 5, 2026 Reel 75019, frame 524 | Citibank, N.A., as Collateral Agent | Energy Labs, Inc.; Vertiv Corporation; Electrical Reliability Services, Inc. | Release of Security Interest Recorded at 052076/0874 |
| Mar 5, 2026 reel/frame not recorded | Citibank, N.A., as Collateral Agent | Energy Labs, Inc. | Release of Security Interest Recorded at 052076/0874 |
| Mar 5, 2026 reel/frame not recorded | Citibank, N.A., as Collateral Agent | Vertiv Corporation | Release of Security Interest Recorded at 052076/0874 |
| Mar 5, 2026 reel/frame not recorded | Citibank, N.A., as Collateral Agent | Electrical Reliability Services, Inc. | Release of Security Interest Recorded at 052076/0874 |
Sources
Google Patents · The patent document at USPTO · Assignment records at USPTO
USPTO account required: This application in Patent Center · USPTO's maintenance fee lookup
Maintenance fee events come from USPTO's own fee records. Its fee lookup asks for the patent number and the application number.
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Alerts on its grants, lapses and transfers.
What's changing
Dec 2026
Term ends Dec 5, 2026. No further fees fall due before then
Citations
0
later US patents cite this one
That is below the median of utility patents granted in 2009 in our data, the only group it is compared against.
How we rank
Every date shows its work: the base term, any term adjustment or extension, any disclaimer cap, and the maintenance fee record, each with a confidence tier. How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.