Term ends no later than Dec 15, 2028 · Medium confidence
20-year base term ended Jan 27, 2026
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.
Jan 27, 2006
Dec 15, 2028
Sep 21, 2010
This patent's term runs 1053 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
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Jan 27, 2006, when this application, 11/340,957, was filed | Jan 27, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1053 days, USPTO patent term adjustment record | Dec 15, 2028 | 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 15, 2028 | Medium confidence |
This family
| US 7,206,870 | Term ended May 2025 | May 2025 |
| US 7,865,637 | Term ended no later than Oct 2025 | no later than Oct 2025 |
| Application 60/702,727 | Provisional application no patent term | no patent term |
| Application 60/734,623 | Provisional application no patent term | no patent term |
| US 7,409,533 | Term ended Jun 2024 | Jun 2024 |
| US 7,801,033 | this patent no later than Dec 2028 | no later than Dec 2028 |
| Application 11/458,061 | Abandoned not computed | not computed |
| US 7,945,803 | In force Apr 2027 | Apr 2027 |
Assignments
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Mar 27, 2006 Reel 17371, frame 207 | Jones, Anthony Mark; Wasson, Paul M.; Butts, Michael R. | Ambric, Inc. | Assignment of Assignor's Interest |
| Jan 10, 2007 Reel 18777, frame 202 | Ambric, Inc. | Silicon Valley Bank | Assignment of Assignor's Interest |
| Mar 29, 2007 Reel 19116, frame 277 | Ambric, Inc. | Silicon Valley Bank | Correction to Change Nature of Conveyance on Document #103361115 with R/F 018777/0202, Conveyance Should Read Security Agreement. |
| Mar 16, 2009 Reel 22399, frame 380 | Ambric, Inc. | Nethra Imaging Inc. | Assignment of Assignor's Interest |
| Jun 30, 2010 Reel 24611, frame 288 | Nethra Imaging, Inc. | Arm Limited | Security Agreement |
| Feb 13, 2013 Reel 29809, frame 76 | Silicon Valley Bank | Ambric, Inc. | Release of Security Interest |
| Nov 11, 2013 Reel 31576, frame 540 | Metagence Technologies Limited | Imagination Technologies Limited | Assignment of Assignor's Interest |
| Nov 11, 2013 Reel 31576, frame 320 | Nethra Imaging, Inc. | Metagence Technologies Limited | Assignment of Assignor's Interest |
| Jul 31, 2024 Reel 68221, frame 1 | Imagination Technologies Limited | Fortress Investment Group (UK) Ltd. | 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
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than Dec 15, 2028. We will not guess the cap.