Term ended May 17, 2023 · High confidence
20-year base term ended Apr 10, 2023
Held by Wayne Fueling Systems LLC
Filed Oct 22, 2018 as application 16/166,567 · Granted Apr 27, 2021
Base term plus 37 days of patent term adjustment (USPTO delay)
Today
Term ended May 17, 2023
2003
2026
Clock starts
Apr 10, 2003
Apr 10, 2003
Term ended
May 17, 2023
May 17, 2023
Granted
Apr 27, 2021
Apr 27, 2021
base term
patent term adjustment
after the term ends
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
37
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
1 of 1
Maintenance fees paid
One maintenance fee can end this term early, the one due 3.5 years from grant; the next one's grace period runs past the term end. This counts it if the record shows it paid.
10
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 37 days past its 20-year base term on prosecution delay. 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 Apr 10, 2003, when application 10/411,524, the earliest non-provisional in its chain, was filed (this one was filed Oct 22, 2018) | Apr 10, 2023 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +37 days, USPTO patent term adjustment record | May 17, 2023 | 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 | 1 of 1 maintenance fees paid | term ended | High confidence |
| Computed term end | The steps above, in order | May 17, 2023 | High confidence |
This family
| US 7,624,042 | Term ended Nov 2025 | Nov 2025 |
| US 8,925,808 | In force Mar 2027 | Mar 2027 |
| US 9,045,324 | In force Apr 2029 | Apr 2029 |
| Application PCT/US2006/044256 | PCT application no patent term | no patent term |
| US 10,108,943 | Term ended Apr 2024 | Apr 2024 |
| US 10,118,814 | Term ended Apr 2024 | Apr 2024 |
| Application 15/669,109 | Abandoned not computed | not computed |
| US 10,990,942 | this patent May 2023 | May 2023 |
8 of 10 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.
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Alerts on its grants, lapses and transfers.
What's changing
Note
The 37 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
1
later US patent cites this one
That is below the median of utility patents granted in 2021 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.