Lapsed Jun 30, 2023 on the fee record · High confidence
20-year base term ends Nov 15, 2033
Second maintenance fee unpaid; grace period ended.
Held by Emseal Joint Systems Ltd.
Filed Nov 15, 2013 as application 14/080,960 · Granted Jun 30, 2015
Base term, 20 years from filing
Today
Lapsed Jun 30, 2023
2013
2033
Clock starts
Nov 15, 2013
Nov 15, 2013
No longer in force
Jun 30, 2023
Jun 30, 2023
Granted
Jun 30, 2015
Jun 30, 2015
Term would have run to
Nov 15, 2033
Nov 15, 2033
base term
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
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
1 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.
4
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 Nov 15, 2033: its 20-year base term, with no 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 Nov 15, 2013, when this application, 14/080,960, was filed | Nov 15, 2033 | 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 | None on record | no cap applied | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 3 maintenance fees paid | lapsed Jun 30, 2023 | High confidence |
| Computed term end | The steps above, in order | Jun 30, 2023 | High confidence |
This family
| Application 61/727,351 | Provisional application no patent term | no patent term |
| US 9,068,297 | this patent Jun 2023 | Jun 2023 |
| US 9,963,872 | Lapsed on the fee record May 2022 | May 2022 |
| US 10,544,582 | In force Nov 2033 | Nov 2033 |
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 |
|---|---|---|---|
| May 29, 2014 Reel 32985, frame 851 | Hensley, Lester; Witherspoon, William | Emseal Joint Systems Ltd. | Assignment of Assignor's 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.
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Alerts on its grants, lapses and transfers.
Citations
229
later US patents cite this one
That is top 5% of utility patents granted in 2015 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.