Also listed on Honeywell Limited, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Aug 1, 2028 · High confidence
20-year base term ends Mar 21, 2027
Filed Mar 21, 2007 as application 11/689,249 · Granted Apr 27, 2010
Base term plus 499 days of patent term adjustment (USPTO delay)
Today
2007
2028
Clock starts
Mar 21, 2007
Mar 21, 2007
Term ends
Aug 1, 2028
Aug 1, 2028
Granted
Apr 27, 2010
Apr 27, 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
499
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
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.
28
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 499 days past its 20-year base term on 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 Mar 21, 2007, when this application, 11/689,249, was filed | Mar 21, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +499 days, USPTO patent term adjustment record | Aug 1, 2028 | 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 | Aug 1, 2028 | High confidence |
This family
| US 6,873,222 | Term ended Jan 2022 | Jan 2022 |
| US 6,549,102 | Lapsed on the fee record Apr 2015 | Apr 2015 |
| Application 60/389,931 | Provisional application no patent term | no patent term |
| US 6,882,251 | Term ended Apr 2023 | Apr 2023 |
| US 6,951,941 | Term ended Aug 2023 | Aug 2023 |
| US 6,733,324 | Term ended Apr 2023 | Apr 2023 |
| US 6,897,746 | Term ended Oct 2023 | Oct 2023 |
| US 6,870,454 | Term ended Sep 2023 | Sep 2023 |
8 of 28 applications in this family shown, earliest filings first. 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 |
|---|---|---|---|
| Jun 12, 2007 Reel 19442, frame 798 | Malarky, Alastair; Jones, Trevor | Com Dev International Ltd. | Assignment of Assignor's Interest |
| Feb 1, 2018 Reel 44801, frame 680 | Com Dev International Ltd.; Com Dev Ltd.; Com Dev Atlantic Ltd.; Com Dev Ltd. | Com Dev Ltd. | Merger and Change of Name |
| Oct 28, 2022 Reel 61800, frame 202 | Com Dev Ltd.; Honeywell Limited Honeywell Limitée | Honeywell Limited Honeywell Limitée | Merger and 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
Aug 2028
Term ends Aug 1, 2028. No further fees fall due before then
Note
The 499 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
92
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
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.