Collateral for a security interest recorded May 2, 2016 (Opus Bank).
Term ends Sep 11, 2033 · High confidence
20-year base term ends Sep 11, 2033
Held by Drum Workshop, Inc.
Filed Sep 11, 2013 as application 14/024,485 · Granted Jul 21, 2015
Base term, 20 years from filing
Today
2013
2033
Clock starts
Sep 11, 2013
Sep 11, 2013
Term ends
Sep 11, 2033
Sep 11, 2033
Granted
Jul 21, 2015
Jul 21, 2015
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
None
Term adjustment
No prosecution delay on this record.
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.
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 is its 20-year base term, with no adjustment for 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 Sep 11, 2013, when this application, 14/024,485, was filed | Sep 11, 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 | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Sep 11, 2033 | High confidence |
This family
| US D456,442 | Term ended Apr 2016 | Apr 2016 |
| US 6,365,810 | Term ended Jan 2021 | Jan 2021 |
| US 6,489,546 | Term ended Jan 2021 | Jan 2021 |
| US 7,074,996 | Term ended Oct 2023 | Oct 2023 |
| US 7,750,219 | Lapsed on the fee record Jul 2022 | Jul 2022 |
| US 8,609,967 | In force Jan 2030 | Jan 2030 |
| US 7,964,781 | In force Jan 2030 | Jan 2030 |
| US 8,101,841 | In force Feb 2030 | Feb 2030 |
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 |
|---|---|---|---|
| Oct 30, 2014 Reel 34070, frame 568 | Krol, Andrzej J; Filonovich, Victor; Schwarz, Thomas M; Bonsignore, Sergio G | KMC Music, Inc. | Assignment of Assignor's Interest |
| Jan 26, 2015 Reel 34810, frame 376 | KMC Music, Inc. | Drum Workshop, Inc. | Assignment of Assignor's Interest |
| Jan 27, 2015 Reel 34826, frame 489 | KMC Music, Inc. | Drum Workshop, Inc. | Corrective Assignment to Correct the Incorrect Patent No. 6092129 Previously Recorded at Reel: 034810 Frame: 0376. Assignor(S) Hereby Confirms the Assignment. |
| Jan 30, 2015 Reel 34862, frame 131 | KMC Music, Inc. | Drum Workshop, Inc. | Corrective Assignment to Correct the Remove Patent No. 29/472209 and Replace Patent No. 29/473209 Previously Recorded on Reel 034826 Frame 0489. Assignor(S) Hereby Confirms the Assignment. |
| Mar 11, 2015 Reel 35187, frame 365 | Drum Workshop, Inc. | Bank Of America, N.a. | Security Interest |
| Dec 2, 2015 Reel 37195, frame 605 | Drum Workshop, Inc. (as Grantor) | Endeavour Structured Equity and Mezzanine Fund I, L.P. (as Lead Purchaser) | Security Interest |
| Apr 26, 2016 Reel 38527, frame 968 | Endeavour Structured Equity and Mezzanine Fund I, L.P. | Drum Workshop, Inc. | Release of Security Interest |
| May 2, 2016 Reel 38589, frame 666 | Drum Workshop, Inc. | Opus Bank | Security Interest |
| May 5, 2017 Reel 42409, frame 38 | Bank Of America, N.a. | Drum Workshop, Inc. | Release of Security 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
Sep 2033
Term ends Sep 11, 2033. Maintenance fees still fall due before then
Citations
14
later US patents cite this one
That is above the median 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.