Collateral for a security interest recorded May 2, 2016 (Opus Bank).
Lapsed Jul 6, 2022 on the fee record · High confidence
20-year base term ends Jan 14, 2028
Third maintenance fee unpaid; grace period ended.
Held by Drum Workshop, Inc.
Filed Jan 14, 2008 as application 12/013,661 · Granted Jul 6, 2010
Base term, 20 years from filing, plus 190 days of patent term adjustment (USPTO delay)
Today
Lapsed Jul 6, 2022
2008
2028
Clock starts
Jan 14, 2008
Jan 14, 2008
No longer in force
Jul 6, 2022
Jul 6, 2022
Granted
Jul 6, 2010
Jul 6, 2010
Term would have run to
Jul 22, 2028
Jul 22, 2028
base term
patent term adjustment
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
190
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.
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 Jul 22, 2028: its 20-year base term plus 190 days of term 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 Jan 14, 2008, when this application, 12/013,661, was filed | Jan 14, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +190 days, USPTO patent term adjustment record | Jul 22, 2028 | 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 | lapsed Jul 6, 2022 | High confidence |
| Computed term end | The steps above, in order | Jul 6, 2022 | 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 | this patent 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 |
|---|---|---|---|
| Jan 14, 2008 Reel 20359, frame 907 | Simons, Richard; Enhoffer, Raymond; Krol, Andrzej | Kaman Music Corporation | Assignment of Assignor's Interest |
| May 17, 2013 Reel 30441, frame 630 | KMC Music, Inc. (F/K/A Kaman Music Corporation) | JPMorgan Chase Bank, N.A., as Administrative Agent | Security Agreement |
| May 22, 2013 Reel 30486, frame 270 | KMC Music, Inc. (F/K/A Kaman Music Corporation) | JPMorgan Chase Bank, N.A., as Administrative Agent | Security Agreement |
| Jan 6, 2015 Reel 34728, frame 466 | JP Morgan Chase Bank, N.A. | KMC Music, Inc. (F/K/A Kaman Music Corporation) | Release of Security Interest |
| Jan 6, 2015 Reel 34730, frame 45 | JP Morgan Chase Bank, N.A. | KMC Music, Inc. (F/K/A) Kaman Music Corporation | Release of Security 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 |
| Feb 7, 2017 Reel 41649, frame 926 | JPMorgan Chase Bank, N.A., as Administrative Agent | Fender Musical Instruments Corporation; KMC Music, Inc. (F/K/A Kaman Music Corporation) | Release of Security Interest |
| Feb 7, 2017 Reel 41651, frame 785 | Jpmorgan Chase Bank, N.a. | Fender Musical Instruments Corporation; Rokr Distribution US, Inc. (Formerly KMC Music, Inc.) | Release of Security Interest |
| Feb 7, 2017 reel/frame not recorded | JPMorgan Chase Bank, N.A., as Administrative Agent | Fender Musical Instruments Corporation | Release of Security Interest |
| Feb 7, 2017 reel/frame not recorded | JPMorgan Chase Bank, N.A., as Administrative Agent | KMC Music, Inc. (F/K/A Kaman Music Corporation) | Release of Security Interest |
| Feb 7, 2017 reel/frame not recorded | Jpmorgan Chase Bank, N.a. | Fender Musical Instruments Corporation | Release of Security Interest |
| Feb 7, 2017 reel/frame not recorded | Jpmorgan Chase Bank, N.a. | Rokr Distribution US, Inc. (Formerly KMC Music, Inc.) | Release of 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
Note
The 190 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
2
later US patents cite this one
That is below the median of utility patents granted in 2010 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.