Term ended no later than Apr 26, 2020 · Low confidence
20-year base term ended Apr 26, 2020
USPTO later recorded it as expired for non-payment on Dec 13, 2021.
Held by Eyepoint Pharmaceuticals, Inc.
Filed Jan 19, 2010 as application 12/689,956 · Granted Nov 5, 2013
Base term, 20 years from filing
Today
Ended no later than Apr 26, 2020
2000
2026
Clock starts
Apr 26, 2000
Apr 26, 2000
Ended no later than
Apr 26, 2020
Apr 26, 2020
Granted
Nov 5, 2013
Nov 5, 2013
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 1
Maintenance fees paid
One maintenance fee can end this term early, the one due 3.5 years from grant; the next one's grace period runs past the term end. This counts it if the record shows it paid.
12
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. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. Confidence: Low. 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 Apr 26, 2000, when application 09/558,207, the earliest non-provisional in its chain, was filed (this one was filed Jan 19, 2010); a parent in its chain could not be resolved (the next row) | Apr 26, 2020 | 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 | 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 1 maintenance fees paid | term ended | High confidence |
| USPTO status record | Recorded as expired for non-payment on Dec 13, 2021, after the term ended | no change | High confidence |
| Computed term end | The steps above, in order | no later than Apr 26, 2020 | Low confidence |
This family
| Application 10/096,877 | Abandoned not computed | not computed |
| Application 10/428,214 | Abandoned not computed | not computed |
| US 8,871,241 | In force Aug 2027 | Aug 2027 |
| Application 10/762,421 | Abandoned not computed | not computed |
| Application 10/762,439 | Abandoned not computed | not computed |
| Application 11/894,694 | Abandoned not computed | not computed |
| US 8,574,659 | Term ended no later than Jun 2020 | no later than Jun 2020 |
| US 8,574,613 | this patent no later than Apr 2020 | no later than Apr 2020 |
8 of 12 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 |
|---|---|---|---|
| Jan 26, 2010 Reel 23849, frame 540 | Guo, Hong; Ashton, Paul | Control Delivery Systems, Inc. | Assignment of Assignor's Interest |
| Jan 26, 2010 Reel 23849, frame 635 | Control Delivery Systems, Inc. | Psivida Inc. | Merger |
| Feb 22, 2010 Reel 23968, frame 488 | Psivida Inc. | Psivida US, Inc. | Change of Name |
| Apr 5, 2018 Reel 45848, frame 670 | Psivida Corp. | SWK Funding LLC, as Agent | Security Interest |
| Feb 13, 2019 Reel 48329, frame 45 | Eyepoint Pharmaceuticals, Inc.; Eyepoint Pharmaceuticals US, Inc.; Icon Bioscience, Inc. | CRG Servicing LLC, as Administrative Agent | Security Interest |
| Feb 13, 2019 Reel 48329, frame 136 | SWK Funding LLC, as Agent | Psivida Corp.; Psivida US, Inc.; Icon Bioscience, Inc. | Release of Security Interest |
| Feb 13, 2019 reel/frame not recorded | SWK Funding LLC, as Agent | Psivida Corp. | Release of Security Interest |
| Feb 13, 2019 reel/frame not recorded | SWK Funding LLC, as Agent | Psivida US, Inc. | Release of Security Interest |
| Feb 13, 2019 reel/frame not recorded | SWK Funding LLC, as Agent | Icon Bioscience, Inc. | Release of Security Interest |
| Apr 2, 2019 Reel 49108, frame 700 | Psivida US, Inc. | Eyepoint Pharmaceuticals, Inc. | Change of Name |
| Mar 14, 2022 Reel 59365, frame 112 | CRG Servicing LLC, as Administrative Agent | Eyepoint Pharmaceuticals, Inc.; Eyepoint Pharmaceuticals US, Inc.; Icon Bioscience, Inc. | Release of Security Interest |
| Mar 14, 2022 reel/frame not recorded | CRG Servicing LLC, as Administrative Agent | Eyepoint Pharmaceuticals, Inc. | Release of Security Interest |
| Mar 14, 2022 reel/frame not recorded | CRG Servicing LLC, as Administrative Agent | Eyepoint Pharmaceuticals US, Inc. | Release of Security Interest |
| Mar 14, 2022 reel/frame not recorded | CRG Servicing LLC, as Administrative Agent | Icon Bioscience, 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.
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 Apr 26, 2020. We will not guess the cap.
Citations
33
later US patents cite this one
That is top 25% 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
This computed term ends no later than the date shown; an unresolved terminal disclaimer may end it earlier. Related patents and pending applications may cover overlapping subject matter.