Term ends Mar 11, 2035 · High confidence
20-year base term ends Mar 11, 2035
Held by Grace Engineering Corp.
Filed Mar 11, 2015 as application 14/644,718 · Granted Dec 27, 2016
Base term, 20 years from filing
Today
2015
2035
Clock starts
Mar 11, 2015
Mar 11, 2015
Term ends
Mar 11, 2035
Mar 11, 2035
Granted
Dec 27, 2016
Dec 27, 2016
base term
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
None
Term adjustment
No prosecution delay on this record.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 9,523,556, to Mar 11, 2035. The term already ends on or before that date, so the cap shortened nothing.
2 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.
6
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 is its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 2 of 3 maintenance fees are paid so far. 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 Mar 11, 2015, when this application, 14/644,718, was filed | Mar 11, 2035 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 9,523,556) | resolves to Mar 11, 2035, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Mar 11, 2035 | High confidence |
This family
| US 9,528,796 | this patent Mar 2035 | Mar 2035 |
| US 10,094,638 | In force Mar 2035 | Mar 2035 |
| US 10,302,393 | Lapsed on the fee record May 2023 | May 2023 |
| US 10,415,931 | Lapsed on the fee record Sep 2023 | Sep 2023 |
| US 10,648,770 | In force Mar 2035 | Mar 2035 |
| Application 16/389,126 | Abandoned not computed | not computed |
The applications whose file history this site holds. The family may have others.
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 |
|---|---|---|---|
| Mar 11, 2015 Reel 35140, frame 596 | Grace, Louis, JR.; Roelens, Timothy J., II | Grace Engineering Corp. | Assignment of Assignor's Interest |
| Apr 12, 2018 Reel 45517, frame 842 | Grace Engineering Corp.; G5 Outdoors, L.L.C.; Grace Properties of Memphis, L.L.C. | The Huntington National Bank | Security Interest |
| Aug 8, 2025 Reel 71971, frame 29 | The Huntington National Bank | Grace Engineering Corp.; G5 Outdoors, L.L.C.; Grace Properties of Memphis, L.L.C. | Release of Security Interest |
| Aug 8, 2025 reel/frame not recorded | The Huntington National Bank | Grace Engineering Corp. | Release of Security Interest |
| Aug 8, 2025 reel/frame not recorded | The Huntington National Bank | G5 Outdoors, L.L.C. | Release of Security Interest |
| Aug 8, 2025 reel/frame not recorded | The Huntington National Bank | Grace Properties of Memphis, L.L.C. | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Mar 2035
Term ends Mar 11, 2035. Maintenance fees still fall due before then
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 9,523,556, ends no earlier than this term, so it caps nothing.
Citations
5
later US patents cite this one
That is above the median of utility patents granted in 2016 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.