Term ends no later than Dec 26, 2027 · Medium confidence
20-year base term ended Mar 1, 2025
In force on USPTO's status record and by its fee record. A terminal disclaimer on file may shorten this term, possibly to a date already past; its reference document is unresolved, so the date above is an upper bound and no earlier date is guessed.
Filed Mar 1, 2005 as application 11/069,465 · Granted Jul 20, 2010
Base term plus 1030 days of patent term adjustment (USPTO delay)
Today
2005
2027
Clock starts
Mar 1, 2005
Mar 1, 2005
Ends no later than
Dec 26, 2027
Dec 26, 2027
Granted
Jul 20, 2010
Jul 20, 2010
base term
patent term adjustment
fee events
Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
1,030
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
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.
2
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
This patent's term runs 1030 days past its 20-year base term on prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. All three maintenance fees are recorded paid; no more fees are due. Confidence: Medium. 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 Mar 1, 2005, when this application, 11/069,465, was filed | Mar 1, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1030 days, USPTO patent term adjustment record | Dec 26, 2027 | High confidence |
| Terminal disclaimer cap | Disclaimer on file (approved), reference document not resolved | no cap applied, and none guessed | Medium 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 | no later than Dec 26, 2027 | Medium confidence |
This family
| US 7,761,923 | this patent no later than Dec 2027 | no later than Dec 2027 |
| US 7,614,083 | In force Jul 2028 | Jul 2028 |
The applications whose file history this site holds. The family may have others.
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 |
|---|---|---|---|
| Jul 13, 2006 Reel 17921, frame 766 | Invensys Systems, Inc. | Deutsche Bank AG, London Branch | Security Agreement |
| Dec 12, 2006 Reel 18623, frame 617 | Khuti, Bharat; Coleman, Clayton; Rath, David; Rakaczky, Ernest; Leslie, Jim; Simpson, George | Invesys Systems, Inc. | Assignment of Assignor's Interest |
| Nov 19, 2009 Reel 23544, frame 487 | Khuti, Bharat; Coleman, Clayton; Rath, David; Rakaczky, Ernest; Leslie, Jim; Simpson, George | Invensys Systems, Inc. | Corrective Assignment to Correct the Assignee Name Previously Recorded on Reel 018623 Frame 0617. Assignor(S) Hereby Confirms the Invensys Systems, Inc.. |
| Dec 2, 2009 Reel 23595, frame 72 | Khuti, Bharat; Coleman, Clayton; Rath, David; Rakaczky, Ernest; Leslie, Jim; Simpson, George | Invensys Systems, Inc. | Corrective Assignment to Correct the Application Number Previously Recorded on Reel 023544 Frame 0487. Assignor(S) Hereby Confirms the Correct Application Number Is: 11069465. |
| Aug 9, 2013 Reel 30982, frame 737 | Deutsche Bank AG, London Branch | Invensys Systems, Inc. | Release of Security Interest |
| Jul 31, 2017 Reel 43379, frame 925 | Invensys Systems, Inc. | Schneider Electric Systems USA, Inc. | Change of Name |
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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Dec 2027
Term ends no later than Dec 26, 2027. No further fees fall due before then
Note
A terminal disclaimer is on file and its reference is not resolved. No cap is applied and none is guessed
Note
The 1030 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Open question
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than Dec 26, 2027. We will not guess the cap.
Citations
95
later US patents cite this one
That is top 10% of utility patents granted in 2010 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
This computed term ends no later than the date shown; an unresolved terminal disclaimer may end it earlier. 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.