Lapsed Apr 26, 2024 on the fee record · High confidence
20-year base term ends Oct 15, 2032
Second maintenance fee unpaid; grace period ended.
Held by Emseal Joint Systems, Ltd.
Filed Oct 15, 2012 as application 13/652,021 · Granted Apr 26, 2016
Base term, 20 years from filing
Today
Lapsed Apr 26, 2024
2012
2032
Clock starts
Oct 15, 2012
Oct 15, 2012
No longer in force
Apr 26, 2024
Apr 26, 2024
Granted
Apr 26, 2016
Apr 26, 2016
Term would have run to
Oct 15, 2032
Oct 15, 2032
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.
30
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 Oct 15, 2032: 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 Oct 15, 2012, when this application, 13/652,021, was filed | Oct 15, 2032 | 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 Apr 26, 2024 | High confidence |
| Computed term end | The steps above, in order | Apr 26, 2024 | High confidence |
This family
| US 8,365,495 | Lapsed on the fee record Feb 2021 | Feb 2021 |
| US 9,200,437 | In force Feb 2030 | Feb 2030 |
| US 9,322,163 | this patent Apr 2024 | Apr 2024 |
| Application 61/729,040 | Provisional application no patent term | no patent term |
| US 8,739,495 | Lapsed on the fee record Jun 2022 | Jun 2022 |
| US 9,670,666 | Lapsed on the fee record Jun 2025 | Jun 2025 |
| US 9,637,915 | Lapsed on the fee record May 2025 | May 2025 |
| Application 61/806,194 | Provisional application no patent term | no patent term |
8 of 30 applications in this family shown, earliest filings first. 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 |
|---|---|---|---|
| Nov 21, 2013 Reel 31646, frame 399 | Hensley, Lester | 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
69
later US patents cite this one
That is top 5% 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.