Term ends Nov 20, 2029 · High confidence
20-year base term ends Nov 20, 2029
Held by Sika Technology AG
Filed Dec 21, 2016 as application 15/386,907 · Granted Mar 9, 2021
Base term plus 157 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2009
2029
Clock starts
Nov 20, 2009
Nov 20, 2009
Term ends
Nov 20, 2029
Nov 20, 2029
Granted
Mar 9, 2021
Mar 9, 2021
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
157
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 10,179,993, US 10,316,661, US 10,519,651, US 10,787,805, US 10,787,806, US 10,794,056, US 10,934,702, US 10,934,704, US 8,365,495, US 8,739,495, US 9,528,262, US 9,631,362, US 9,637,915, US 9,644,368, US 9,670,666, US 9,689,157, US 9,689,158.
1 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. 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.
This patent's term runs 157 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 1 of 2 maintenance fees is 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 Nov 20, 2009, when application 12/622,574, the earliest non-provisional in its chain, was filed (this one was filed Dec 21, 2016) | Nov 20, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +157 days, USPTO patent term adjustment record | Apr 26, 2030 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,179,993, US 10,316,661, US 10,519,651, US 10,787,805, US 10,787,806, US 10,794,056, US 10,934,702, US 10,934,704, US 8,365,495, US 8,739,495, US 9,528,262, US 9,631,362, US 9,637,915, US 9,644,368, US 9,670,666, US 9,689,157, US 9,689,158) | capped to Nov 20, 2029 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Nov 20, 2029 | 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 | Lapsed on the fee record 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 |
|---|---|---|---|
| Jan 26, 2017 Reel 41094, frame 708 | Witherspoon, Bill | Emseal Joint Systems, Ltd. | Assignment of Assignor's Interest |
| Oct 10, 2023 Reel 65164, frame 786 | Emseal Joint Systems, Ltd. | Sika Technology AG | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Nov 2029
Term ends Nov 20, 2029. Maintenance fees still fall due before then
Note
The 157 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 10,179,993, US 10,316,661, US 10,519,651, US 10,787,805, US 10,787,806, US 10,794,056, US 10,934,702, US 10,934,704, US 8,365,495, US 8,739,495, US 9,528,262, US 9,631,362, US 9,637,915, US 9,644,368, US 9,670,666, US 9,689,157, US 9,689,158.
Citations
64
later US patents cite this one
That is top 5% 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.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.