Lapsed Dec 3, 2017 on the fee record · High confidence
20-year base term ended Sep 19, 2026
First maintenance fee unpaid; grace period ended.
Held by Mec Management, LLC
Filed Dec 15, 2006 as application 11/641,099 · Granted Dec 3, 2013
Base term, 20 years from filing, plus 1757 days of patent term adjustment (USPTO delay)
Today
Lapsed Dec 3, 2017
2006
2031
Clock starts
Sep 19, 2006
Sep 19, 2006
No longer in force
Dec 3, 2017
Dec 3, 2017
Granted
Dec 3, 2013
Dec 3, 2013
Term would have run to
Jul 12, 2031
Jul 12, 2031
base term
patent term adjustment
after the term ends
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
1,757
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
0 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.
19
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
Its term would have run to Jul 12, 2031: its 20-year base term plus 1757 days of term adjustment for prosecution delay. 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 Sep 19, 2006, when application 11/524,052, the earliest non-provisional in its chain, was filed (this one was filed Dec 15, 2006) | Sep 19, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1757 days, USPTO patent term adjustment record | Jul 12, 2031 | 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 | 0 of 3 maintenance fees paid | lapsed Dec 3, 2017 | High confidence |
| Computed term end | The steps above, in order | Dec 3, 2017 | High confidence |
This family
| US 9,306,975 | In force (reinstated) no later than Sep 2030 | no later than Sep 2030 |
| Application 11/524,052 | Abandoned not computed | not computed |
| Application 11/524,077 | Abandoned not computed | not computed |
| US 8,224,930 | Lapsed on the fee record Jul 2024 | Jul 2024 |
| US 8,984,579 | In force (reinstated) May 2030 | May 2030 |
| US 8,601,104 | this patent Dec 2017 | Dec 2017 |
| US 7,752,255 | In force no later than Jun 2028 | no later than Jun 2028 |
| Application 11/640,540 | Abandoned not computed | not computed |
8 of 19 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 |
|---|---|---|---|
| Mar 6, 2007 Reel 18999, frame 14 | Cohen, Alexander J.; Jung, Edward K.y.; Levien, Royce A.; Lord, Robert W.; Mangione-smith, William Henry | Searete LLC | Assignment of Assignor's Interest |
| Apr 20, 2009 Reel 22581, frame 141 | Cohen, Alexander J.; Jung, Edward K.y.; Levien, Royce A.; Lord, Robert W.; Mangione-smith, William Henry; Malamud, Mark A. | Searete LLC | Assignment of Assignor's Interest |
| Aug 22, 2013 Reel 31064, frame 772 | Searete LLC | The Invention Science Fund I, LLC | Assignment of Assignor's Interest |
| Aug 1, 2018 Reel 46521, frame 857 | The Invention Science Fund I, LLC | Bylas District Economic Enterprise, LLC | Assignment of Assignor's Interest |
| Aug 23, 2019 Reel 50143, frame 657 | Bylas District Economic Enterprise LLC | Mec Management, LLC | 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
Note
The 1757 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
6
later US patents cite this one
That is below the median of utility patents granted in 2013 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.