Term ends no later than Dec 9, 2027 · Medium confidence
20-year base term ended Mar 14, 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.
Mar 14, 2006
Dec 9, 2027
Aug 10, 2010
This patent's term runs 635 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 Mar 14, 2006, when this application, 11/375,643, was filed | Mar 14, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +635 days, USPTO patent term adjustment record | Dec 9, 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 9, 2027 | Medium confidence |
This family
| US 7,772,485 | this patent no later than Dec 2027 | no later than Dec 2027 |
| US 7,781,673 | Lapsed on the fee record Aug 2022 | Aug 2022 |
| Application PCT/US2006/027397 | PCT application no patent term | no patent term |
| US 8,058,550 | Lapsed on the fee record Nov 2019 | Nov 2019 |
| Application 11/486,536 | Abandoned not computed | not computed |
| Application 11/601,374 | Abandoned not computed | not computed |
| Application 11/643,271 | Abandoned not computed | not computed |
| Application 11/684,346 | Abandoned not computed | not computed |
Assignments
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Aug 16, 2006 Reel 18133, frame 689 | Gaudiana, Russell; Kingsborough, Richard; Waller, David; Zhu, Zhengguo | Konarka Technologies, Inc. | Assignment of Assignor's Interest |
| Oct 17, 2011 Reel 27297, frame 772 | Konarka Technologies, Inc. | Massachusetts Development Finance Agency | Security Agreement |
| Oct 17, 2011 Reel 27468, frame 697 | Konarka Technologies, Inc. | Massachusetts Development Finance Agency | Amendment to Security Agreement |
| Oct 26, 2011 Reel 27465, frame 192 | Konarka Technologies, Inc. | Total Gas & Power USA (SAS) | Security Agreement |
| Jan 29, 2013 Reel 29717, frame 48 | Konarka Technologies, Inc. | Merck KGaA | Assignment of Assignor's Interest |
| Jan 29, 2013 Reel 29717, frame 65 | Merck KGaA | Merck Patent GmbH | Assignment of Assignor's Interest |
| Jul 22, 2020 Reel 53283, frame 990 | Merck Patent GmbH | Raynergy Tek Incorporation | Assignment of Assignor's 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 9, 2027. We will not guess the cap.