Term ends Nov 25, 2026 · High confidence
20-year base term ended Mar 22, 2026
Filed Mar 22, 2006 as application 11/386,312 · Granted Oct 21, 2008
Base term plus 248 days of patent term adjustment (USPTO delay)
Today
2006
2026
Clock starts
Mar 22, 2006
Mar 22, 2006
Term ends
Nov 25, 2026
Nov 25, 2026
Granted
Oct 21, 2008
Oct 21, 2008
base term
patent term adjustment
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
248
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.
This patent's term runs 248 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 22, 2006, when this application, 11/386,312, was filed | Mar 22, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +248 days, USPTO patent term adjustment record | Nov 25, 2026 | 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 (reinstated) | High confidence |
| Computed term end | The steps above, in order | Nov 25, 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 |
|---|---|---|---|
| Apr 6, 2006 Reel 17429, frame 358 | Stagliano, James J.; Alford, James Larry; Helvin, James Rogers; Nelson, Dean A. | Enterprise Electronics Corporation | Assignment of Assignor's Interest |
| Sep 16, 2008 Reel 21531, frame 127 | TWCC Holding Corp.; The Weather Channel, Inc.; Wsi Corporation; Enterprise Electronics Corporation | Deutsche Bank Trust Company Americas, as Collateral Agent | Security Agreement |
| Mar 19, 2010 Reel 24103, frame 710 | TWCC Holding Corp.; The Weather Channel, Inc.; Wsi Corporation; Enterprise Electronics Corporation | Deutsche Bank Trust Company Americas, as Collateral Agent | Security Agreement |
| Jul 17, 2012 Reel 28562, frame 804 | Deutsche Bank Trust Company Americas, as Collateral Agent | Enterprise Electronics Corporation | Release of Security Interest |
| Sep 21, 2012 Reel 29005, frame 559 | Deutsche Bank Trust Company Americas, as Collateral Agent | TWCC Holding Corp.; The Weather Channel, Inc.; Wsi Corporation | Release of Security Interest |
| Sep 21, 2012 reel/frame not recorded | Deutsche Bank Trust Company Americas, as Collateral Agent | TWCC Holding Corp. | Release of Security Interest |
| Sep 21, 2012 reel/frame not recorded | Deutsche Bank Trust Company Americas, as Collateral Agent | The Weather Channel, Inc. | Release of Security Interest |
| Sep 21, 2012 reel/frame not recorded | Deutsche Bank Trust Company Americas, as Collateral Agent | Wsi Corporation | Release of Security Interest |
| Jun 5, 2015 Reel 35841, frame 1 | Deutsche Bank Trust Company Americas | Deutsche Bank AG New York Branch, as Successor Agent | Notice of Succession of Agency (First Lien) |
| Mar 14, 2016 Reel 38081, frame 1 | Deutsche Bank AG New York Branch, as Administrative Agent and Collateral Agent | The Weather Channel, Inc.; Wsi Corporation; Enterprise Electronics Corporation; The Weather Channel, LLC | Release of Security Interest |
| Mar 14, 2016 reel/frame not recorded | Deutsche Bank AG New York Branch, as Administrative Agent and Collateral Agent | The Weather Channel, Inc. | Release of Security Interest |
| Mar 14, 2016 reel/frame not recorded | Deutsche Bank AG New York Branch, as Administrative Agent and Collateral Agent | Wsi Corporation | Release of Security Interest |
| Mar 14, 2016 reel/frame not recorded | Deutsche Bank AG New York Branch, as Administrative Agent and Collateral Agent | Enterprise Electronics Corporation | Release of Security Interest |
| Mar 14, 2016 reel/frame not recorded | Deutsche Bank AG New York Branch, as Administrative Agent and Collateral Agent | The Weather Channel, LLC | Release of Security Interest |
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.
What's changing
Nov 2026
Term ends Nov 25, 2026. No further fees fall due before then
Note
The 248 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
15
later US patents cite this one
That is above the median of utility patents granted in 2008 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.