Term ends Jan 18, 2033 · High confidence
20-year base term ends Jul 20, 2032
Held by Hammer Technologies, Inc.
Filed Jul 20, 2012 as application 13/554,964 · Granted Feb 17, 2015
Base term plus 182 days of patent term adjustment (USPTO delay)
Today
2012
2033
Clock starts
Jul 20, 2012
Jul 20, 2012
Term ends
Jan 18, 2033
Jan 18, 2033
Granted
Feb 17, 2015
Feb 17, 2015
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
182
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
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.
This patent's term runs 182 days past its 20-year base term on prosecution delay. 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 Jul 20, 2012, when this application, 13/554,964, was filed | Jul 20, 2032 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +182 days, USPTO patent term adjustment record | Jan 18, 2033 | 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 | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jan 18, 2033 | High confidence |
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 |
|---|---|---|---|
| Sep 18, 2012 Reel 28980, frame 816 | Turgeon, Anne-marie; Figura, Mark; Ivanyi, Tibor; Eidelman, Sergey | Empirix Inc. | Assignment of Assignor's Interest |
| Nov 1, 2013 Reel 31532, frame 806 | Empirix Inc. | Capitalsource Bank, As Administrative Agent | Security Agreement |
| Nov 5, 2013 Reel 31580, frame 694 | Empirix Inc. | Stellus Capital Investment Corporation, as Agent | Patent Security Agreement |
| May 2, 2018 Reel 45691, frame 864 | Pacific Western Bank, as Agent (FKA Capitalsource Bank) | Ares Capital Corporation, As Agent | Security Interest |
| Sep 26, 2018 Reel 46982, frame 124 | Ares Capital Corporation, as Successor Agent to Pacific Western Bank (as Successor to Capitalsource Bank) | Empirix Inc. | Release of Security Interest |
| Sep 26, 2018 Reel 46982, frame 535 | Stellus Capital Investment Corporation | Empirix Inc. | Release of Security Interest |
| Sep 26, 2018 Reel 46983, frame 508 | Empirix Inc. | Goldman Sachs Middle Market Lending Corp. | Security Interest |
| Apr 21, 2021 Reel 55988, frame 203 | Goldman Sachs BDC, Inc. (as Successor-in-Interest to Goldman Sachs Middle Market Lending Corp.), as Collateral Agent | Empirix Inc. | Release of Security Interest |
| May 17, 2024 Reel 67456, frame 875 | Empirix Inc. | Hammer Technologies, Inc. | Change of Name |
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
Jan 2033
Term ends Jan 18, 2033.
Note
The 182 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
218
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.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.