Term ends Nov 16, 2033 · Medium confidence
20-year base term ends Oct 31, 2031
Why Medium: A parent in the chain could not be resolved.
Held by Elwha LLC
Filed Nov 30, 2011 as application 13/373,834 · Granted Jan 1, 2019
Base term plus 747 days of patent term adjustment (USPTO delay)
Today
2011
2033
Clock starts
Oct 31, 2011
Oct 31, 2011
Term ends
Nov 16, 2033
Nov 16, 2033
Granted
Jan 1, 2019
Jan 1, 2019
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
747
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
1 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.
9
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 747 days past its 20-year base term on prosecution delay. 1 of 3 maintenance fees is paid so far. Confidence: Medium. 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 Oct 31, 2011, when applications 13/317,984, 13/317,988, 13/317,989, 13/317,990 and 13/317,991, the earliest non-provisional applications in its chain, were filed (this one was filed Nov 30, 2011); a parent in its chain could not be resolved (the next row) | Oct 31, 2031 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | +747 days, USPTO patent term adjustment record | Nov 16, 2033 | 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 | 1 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Nov 16, 2033 | Medium confidence |
This family
| Application 13/317,988 | Abandoned not computed | not computed |
| Application 13/317,989 | Abandoned not computed | not computed |
| Application 13/317,984 | Abandoned not computed | not computed |
| Application 13/317,990 | Abandoned not computed | not computed |
| Application 13/317,991 | Abandoned not computed | not computed |
| Application 13/373,830 | Abandoned not computed | not computed |
| US 9,569,439 | Lapsed on the fee record Feb 2025 | Feb 2025 |
| US 10,169,339 | this patent Nov 2033 | Nov 2033 |
8 of 9 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 14, 2013 Reel 30004, frame 224 | Davis, Marc E.; Dyor, Matthew G.; Gates, William; Huang, Xuedong; Hyde, Roderick A.; Jung, Edward K.y.; Kare, Jordin T.; Levien, Royce A.; Lu, Qi; Malamud, Mark A.; Myhrvold, Nathan P.; Nadella, Satya; Reed, Daniel; Shum, Harry; Tegreene, Clarence T.; Wood, Lowell L., JR. | Elwha 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.
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Alerts on its grants, lapses and transfers.
What's changing
Nov 2033
Term ends Nov 16, 2033.
Note
The 747 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
14
later US patents cite this one
That is top 25% of utility patents granted in 2019 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.