Term ends Jul 11, 2028 · High confidence
20-year base term ends Jul 11, 2028
Held by ChemoCentryx, Inc.
Filed Jun 28, 2016 as application 15/195,777 · Granted Aug 29, 2017
Base term, 20 years from filing
Today
2008
2028
Clock starts
Jul 11, 2008
Jul 11, 2008
Term ends
Jul 11, 2028
Jul 11, 2028
Granted
Aug 29, 2017
Aug 29, 2017
base term
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
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
2 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
6
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 is its 20-year base term, with no adjustment for prosecution delay. 2 of 2 maintenance fees are paid so far. 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 Jul 11, 2008, when application 12/171,782, the earliest non-provisional in its chain, was filed (this one was filed Jun 28, 2016) | Jul 11, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | 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 | 2 of 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jul 11, 2028 | High confidence |
This family
| US 7,884,110 | In force Jul 2029 | Jul 2029 |
| US 8,546,408 | In force Jul 2028 | Jul 2028 |
| US 9,394,307 | In force Jul 2028 | Jul 2028 |
| US 9,745,312 | this patent Jul 2028 | Jul 2028 |
| US 10,208,050 | In force Jul 2028 | Jul 2028 |
| US 10,899,765 | In force Jul 2028 | Jul 2028 |
The applications whose file history this site holds. The family may have others.
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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Jul 2028
Term ends Jul 11, 2028. No further fees fall due before then
Citations
13
later US patents cite this one
That is top 25% of utility patents granted in 2017 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.