Term ends Oct 30, 2028 · Low confidence
20-year base term ended Dec 15, 2023
Held by Immunomedics, Inc.
Filed Dec 2, 2009 as application 12/629,404 · Granted Aug 16, 2011
Base term, 20 years from filing
Today
2003
2028
Clock starts
Dec 15, 2003
Dec 15, 2003
Term ends
Oct 30, 2028
Oct 30, 2028
Granted
Aug 16, 2011
Aug 16, 2011
base term
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
None
Term adjustment
No prosecution delay on this record.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 7,591,994, US 8,268,317, US 8,877,901, to Dec 15, 2023. The term already ends on or before that date, so the cap shortened nothing.
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.
331
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 resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. All three maintenance fees are recorded paid; no more fees are due. 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 Dec 15, 2003, when application 10/734,589, the earliest non-provisional in its chain, was filed (this one was filed Dec 2, 2009); a parent in its chain could not be resolved (the next row) | Dec 15, 2023 | 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 resolved from the filed document (refs US 7,591,994, US 8,268,317, US 8,877,901) | resolves to Dec 15, 2023, no earlier than this term, so no change | Medium confidence |
| Patent term extension | +1781 days, USPTO 35 U.S.C. 156 certificate | added to Dec 15, 2023: Oct 30, 2028 | High confidence |
| Fee events | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Oct 30, 2028 | Low confidence |
This family
| Application 09/921,290 | Abandoned not computed | not computed |
| US 7,910,103 | Term ended Oct 2020 | Oct 2020 |
| Application 10/350,096 | Abandoned not computed | not computed |
| US 7,312,318 | Term ended Jun 2024 | Jun 2024 |
| US 7,238,785 | Lapsed on the fee record Jul 2019 | Jul 2019 |
| US 7,282,567 | Lapsed on the fee record Oct 2019 | Oct 2019 |
| US 7,829,064 | Term ended May 2021 | May 2021 |
| US 7,585,491 | Term ended Jul 2024 | Jul 2024 |
8 of 331 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 |
|---|---|---|---|
| Feb 22, 2010 Reel 23970, frame 606 | Govindan, Serengulam V.; Moon, Sung-ju; Goldenberg, David M. | Immunomedics, Inc. | Assignment of Assignor's Interest |
| Mar 6, 2018 Reel 45504, frame 993 | Immunomedics, Inc. | National Institutes of Health (Nih), U.S. Dept. of Health and Human Services (DHHS), U.S. Government | Confirmatory License |
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
Oct 2028
Term ends Oct 30, 2028. No further fees fall due before then
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 7,591,994, US 8,268,317, US 8,877,901, ends no earlier than this term, so it caps nothing.
Citations
229
later US patents cite this one
That is top 5% 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.