Term ends Nov 20, 2026 · High confidence
20-year base term ended Aug 2, 2024
Held by Biodot, Inc.
Filed Aug 2, 2004 as application 10/909,934 · Granted Dec 30, 2008
Base term plus 840 days of patent term adjustment (USPTO delay)
Today
2004
2026
Clock starts
Aug 2, 2004
Aug 2, 2004
Term ends
Nov 20, 2026
Nov 20, 2026
Granted
Dec 30, 2008
Dec 30, 2008
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
840
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.
This patent's term runs 840 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 Aug 2, 2004, when this application, 10/909,934, was filed | Aug 2, 2024 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +840 days, USPTO patent term adjustment record | Nov 20, 2026 | 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 | Nov 20, 2026 | High confidence |
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 |
|---|---|---|---|
| Nov 23, 2004 Reel 16007, frame 212 | Tisone, Thomas C.; Rodriquez, Michelle; Cabourne, Michael K. | Biodot, Inc. | Assignment of Assignor's Interest |
| Mar 3, 2020 Reel 51992, frame 354 | Biodot, Inc. | Mufg Union Bank, N.a. | Security Interest |
| Oct 5, 2021 Reel 57707, frame 269 | Mufg Union Bank, N.a. | Biodot, 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.
What's changing
Nov 2026
Term ends Nov 20, 2026. No further fees fall due before then
Note
The 840 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
58
later US patents cite this one
That is top 25% of utility patents granted in 2008 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.