US
Oak tree named ‘QNSTC’
US PP16,401 Term endedTerm ended Aug 10, 2024 · From the USPTO record
Named at grant Tree Introductions, Inc. · find this owner
Filed Apr 12, 2004 as application 10/823,472 · Granted Apr 4, 2006
Base term plus 120 days of patent term adjustment (USPTO delay)
Today
Term ended Aug 10, 2024
2004
2026
Clock starts
Apr 12, 2004
Apr 12, 2004
Term ended
Aug 10, 2024
Aug 10, 2024
Granted
Apr 4, 2006
Apr 4, 2006
base term
patent term adjustment
after the term ends
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
120
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
20 years from filing
Base term
No maintenance fees are payable on this kind of patent.
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 12, 2004, when this application, 10/823,472, was filed | Apr 12, 2024 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +120 days, USPTO patent term adjustment record | Aug 10, 2024 | High confidence |
| Terminal disclaimer cap | None on record | no cap applied | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Computed term end | The steps above, in order | Aug 10, 2024 | From the USPTO record |
Sources
Google Patents · The patent document at USPTO · Assignment records at USPTO
USPTO account required: This application in Patent Center
No maintenance fees are payable on this kind of patent, so the record carries no fee events.
Not on this page: the patent's family, its recorded assignments and its citation count. USPTO's assignment records, linked above, list every recorded assignment.
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.