Lapsed Jun 27, 2025 on the fee record · Medium confidence
20-year base term ends Dec 4, 2035
Why Medium: A terminal disclaimer is on file (approved) with no resolved reference, so the term may end earlier.
Second maintenance fee unpaid; grace period ended.
Held by Synlogic Operating Company, Inc.
Filed May 25, 2016 as application 15/164,828 · Granted Jun 27, 2017
Base term, 20 years from filing
Today
Lapsed Jun 27, 2025
2015
2035
Clock starts
Dec 4, 2015
Dec 4, 2015
No longer in force
Jun 27, 2025
Jun 27, 2025
Granted
Jun 27, 2017
Jun 27, 2017
Term would have run to
Dec 4, 2035
Dec 4, 2035
base term
after the term ends
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.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
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.
61
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 Dec 4, 2035: its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. 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 Dec 4, 2015, when application 14/960,333, the earliest non-provisional in its chain, was filed (this one was filed May 25, 2016) | Dec 4, 2035 | 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 | 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 | 1 of 3 maintenance fees paid | lapsed Jun 27, 2025 | High confidence |
| Computed term end | The steps above, in order | Jun 27, 2025 | Medium confidence |
This family
| US 9,487,764 | In force Dec 2035 | Dec 2035 |
| Application 14/998,376 | Abandoned not computed | not computed |
| Application PCT/US2016/020530 | PCT application no patent term | no patent term |
| Application PCT/US2016/032565 | PCT application no patent term | no patent term |
| US 10,610,546 | In force no later than Jul 2036 | no later than Jul 2036 |
| Application PCT/US2016/032562 | PCT application no patent term | no patent term |
| Application PCT/US2016/034200 | PCT application no patent term | no patent term |
| US 9,688,967 | this patent Jun 2025 | Jun 2025 |
8 of 61 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 |
|---|---|---|---|
| Jul 28, 2016 Reel 39282, frame 938 | Falb, Dean; Isabella, Vincent M; Kotula, Jonathan W; Miller, Paul F; Machinani, Suman | Synlogic, Inc. | Assignment of Assignor's Interest |
| Nov 28, 2018 Reel 47604, frame 94 | Synlogic, Inc. | Synlogic Operating Company, Inc. | Merger |
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
Note
A terminal disclaimer is on file and its reference is not resolved. No cap is applied and none is guessed
Open question
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than Jun 27, 2025. We will not guess the cap.
Citations
33
later US patents cite this one
That is top 10% 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.