Term ends May 3, 2036 · High confidence
20-year base term ends Jun 10, 2034
Held by Renishaw PLC
Filed Dec 4, 2015 as application 14/896,161 · Granted Jul 2, 2019
Base term plus 693 days of patent term adjustment (USPTO delay)
Today
2014
2036
Clock starts
Jun 10, 2014
Jun 10, 2014
Term ends
May 3, 2036
May 3, 2036
Granted
Jul 2, 2019
Jul 2, 2019
base term
patent term adjustment
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
693
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
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.
This patent's term runs 693 days past its 20-year base term on prosecution delay. 1 of 3 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 Jun 10, 2014, when application PCT/GB2014/051775, the earliest non-provisional in its chain, was filed (this one was filed Dec 4, 2015) | Jun 10, 2034 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +693 days, USPTO patent term adjustment record | May 3, 2036 | 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 | In force | High confidence |
| Computed term end | The steps above, in order | May 3, 2036 | High confidence |
This family
| US 10,335,901 | this patent May 2036 | May 2036 |
| US 11,478,856 | In force Jan 2036 | Jan 2036 |
| Application 18/926,410 | Pending not computed | not computed |
3 of 4 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 |
|---|---|---|---|
| Dec 4, 2015 Reel 37215, frame 5 | Ferrar, Ben Ian; Brown, Ceri | Renishaw PLC | 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
May 2036
Term ends May 3, 2036. Maintenance fees still fall due before then
Note
The 693 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
165
later US patents cite this one
That is top 1% of utility patents granted in 2019 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.