Also listed on Warner-Lambert Company LLC, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Apr 30, 2028 · High confidence
20-year base term ended May 18, 2025
Held by McNeil AB
Filed May 18, 2005 as application 11/131,561 · Granted Dec 4, 2012
Base term plus 1078 days of patent term adjustment (USPTO delay)
Today
2005
2028
Clock starts
May 18, 2005
May 18, 2005
Term ends
Apr 30, 2028
Apr 30, 2028
Granted
Dec 4, 2012
Dec 4, 2012
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
1,078
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.
2
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 1078 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 May 18, 2005, when this application, 11/131,561, was filed | May 18, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1078 days, USPTO patent term adjustment record | Apr 30, 2028 | 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 | Apr 30, 2028 | High confidence |
This family
| US 8,323,683 | this patent Apr 2028 | Apr 2028 |
| US 8,658,200 | Term ended May 2025 | May 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 |
|---|---|---|---|
| May 18, 2005 Reel 16583, frame 711 | Mody, Seema; Koll, Gregory | Warner-Lambert Company LLC | Assignment of Assignor's Interest |
| Jul 19, 2007 Reel 19573, frame 631 | Pfizer Inc.; Pfizer Products Inc.; Pfizer Japan Inc.; G.D. Searle LLC; Pharmacia Corporation; Pharmacia & Upjohn Company LLC; Warner Lambert Company LLC | McNeil-PPC, Inc. | Assignment of Assignor's Interest |
| Dec 20, 2013 Reel 31866, frame 489 | Pfizer Inc.; Pfizer Products Inc.; Pfizer Japan Inc.; G.D. Searle LLC; Pharmacia Corporation; Pharmacia & Upjohn Company LLC; Warner Lambert Company LLC | McNeil-PPC, Inc. | Corrective Assignment to Correct the Assignee Name and Address Previously Recorded on Reel 019573 Frame 0631. Assignor(S) Hereby Confirms the Assignment. |
| Jun 18, 2015 Reel 35861, frame 493 | McNeil-PPC, Inc. | McNeil AB | Assignment of Assignor's 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
Apr 2028
Term ends Apr 30, 2028. No further fees fall due before then
Note
The 1078 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
65
later US patents cite this one
That is top 10% of utility patents granted in 2012 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.