Term ends Aug 13, 2027 · High confidence
20-year base term ends Jan 22, 2027
Filed Apr 22, 2009 as application 12/428,229 · Granted Sep 20, 2011
Base term plus 203 days of patent term adjustment (USPTO delay)
Today
2007
2027
Clock starts
Jan 22, 2007
Jan 22, 2007
Term ends
Aug 13, 2027
Aug 13, 2027
Granted
Sep 20, 2011
Sep 20, 2011
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
203
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.
3
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 203 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 Jan 22, 2007, when application 11/656,746, the earliest non-provisional in its chain, was filed (this one was filed Apr 22, 2009) | Jan 22, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +203 days, USPTO patent term adjustment record | Aug 13, 2027 | 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 | High confidence |
| Computed term end | The steps above, in order | Aug 13, 2027 | High confidence |
This family
| US 7,544,473 | In force Feb 2027 | Feb 2027 |
| US 8,021,842 | this patent Aug 2027 | Aug 2027 |
| US 8,445,205 | Term ended Oct 2025 | Oct 2025 |
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 |
|---|---|---|---|
| Aug 13, 2009 Reel 23098, frame 902 | Brenner, Sydney | Compass Genetics, LLC | Assignment of Assignor's Interest |
| Aug 13, 2009 Reel 23098, frame 919 | Compass Genetics LLC | Population Genetics Technologies Ltd. | Assignment of Assignor's Interest |
| Sep 21, 2018 Reel 46937, frame 689 | Population Genetics Technologies Ltd. | Personal Genome Diagnostics, Inc. | Assignment of Assignor's Interest |
| Jun 25, 2020 Reel 53039, frame 815 | Personal Genome Diagnostics Inc. | Pacific Western Bank | Security Interest |
| Sep 14, 2020 Reel 53756, frame 369 | Pacific Western Bank | Personal Genome Diagnostics Inc. | 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
Aug 2027
Term ends Aug 13, 2027. No further fees fall due before then
Note
The 203 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
99
later US patents cite this one
That is top 10% of utility patents granted in 2011 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.