Term ends May 13, 2037 · Low confidence
20-year base term ends Mar 31, 2037
Held by Wayne Fueling Systems LLC
Filed Jan 29, 2021 as application 17/162,800 · Granted Aug 29, 2023
Base term plus 209 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2017
2037
Clock starts
Mar 31, 2017
Mar 31, 2017
Term ends
May 13, 2037
May 13, 2037
Granted
Aug 29, 2023
Aug 29, 2023
base term
patent term adjustment
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
209
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 11,494,855.
0 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.
15
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 209 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 0 of 3 maintenance fees are paid so far. 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 Mar 31, 2017, when application 15/476,150, the earliest non-provisional in its chain, was filed (this one was filed Jan 29, 2021); a parent in its chain could not be resolved (the next row) | Mar 31, 2037 | 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 | +209 days, USPTO patent term adjustment record | Oct 26, 2037 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 11,494,855) | capped to May 13, 2037 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 3 maintenance fees paid | In force | High confidence |
| Further caveats on record | The record names parents not resolved: 16296972 | Low confidence overall | Low confidence |
| Computed term end | The steps above, in order | May 13, 2037 | Low confidence |
This family
| US 10,269,082 | In force Jun 2037 | Jun 2037 |
| US 10,929,937 | In force Mar 2037 | Mar 2037 |
| US 12,008,664 | In force Mar 2037 | Mar 2037 |
| US 11,854,097 | In force Jun 2037 | Jun 2037 |
| US 12,002,119 | In force Mar 2037 | Mar 2037 |
| US 11,741,556 | this patent May 2037 | May 2037 |
| US 12,248,995 | In force Mar 2037 | Mar 2037 |
| US 12,393,998 | In force Mar 2037 | Mar 2037 |
8 of 15 applications in this family shown, earliest filings first. The applications whose file history this site holds. The family may have others.
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
May 2037
Term ends May 13, 2037. Maintenance fees still fall due before then
Note
The 209 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 11,494,855.
Citations
26
later US patents cite this one
That is top 5% of utility patents granted in 2023 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.