Lapsed Jan 14, 2024 on the fee record · High confidence
20-year base term ended Feb 3, 2024
First maintenance fee unpaid; grace period ended.
Held by RTC Industries, Inc.
Filed Oct 26, 2017 as application 15/794,985 · Granted Jan 14, 2020
Base term, 20 years from filing, plus 205 days of patent term adjustment (USPTO delay)
Today
Lapsed Jan 14, 2024
2004
2026
Clock starts
Feb 3, 2004
Feb 3, 2004
No longer in force
Jan 14, 2024
Jan 14, 2024
Granted
Jan 14, 2020
Jan 14, 2020
Term would have run to
Aug 26, 2024
Aug 26, 2024
base term
patent term adjustment
after the term ends
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
205
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
0 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.
6
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
Its term would have run to Aug 26, 2024: its 20-year base term plus 205 days of term adjustment for 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 Feb 3, 2004, when application 10/772,010, the earliest non-provisional in its chain, was filed (this one was filed Oct 26, 2017) | Feb 3, 2024 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +205 days, USPTO patent term adjustment record | Aug 26, 2024 | 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 | 0 of 1 maintenance fees paid | lapsed Jan 14, 2024 | High confidence |
| Computed term end | The steps above, in order | Jan 14, 2024 | High confidence |
This family
| US 7,792,711 | In force Jun 2027 | Jun 2027 |
| US 8,938,396 | Term ended Oct 2026 | Oct 2026 |
| US 8,812,378 | Term ended Feb 2024 | Feb 2024 |
| US 9,805,539 | Term ended no later than Feb 2024 | no later than Feb 2024 |
| US 10,535,216 | this patent Jan 2024 | Jan 2024 |
| US 11,580,812 | Term ended Feb 2024 | Feb 2024 |
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.
What's changing
Note
The 205 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
38
later US patents cite this one
That is top 5% of utility patents granted in 2020 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.