Term ends no later than May 31, 2028 · Medium confidence
20-year base term ends Oct 5, 2027
In force on USPTO's status record and by its fee record. A terminal disclaimer on file may shorten this term, possibly to a date already past; its reference document is unresolved, so the date above is an upper bound and no earlier date is guessed.
Held by 3D Systems, Inc.
Filed Sep 14, 2010 as application 12/881,419 · Granted Apr 9, 2013
Base term plus 239 days of patent term adjustment (USPTO delay)
Today
2007
2028
Clock starts
Oct 5, 2007
Oct 5, 2007
Ends no later than
May 31, 2028
May 31, 2028
Granted
Apr 9, 2013
Apr 9, 2013
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
239
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
3 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.
24
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 239 days past its 20-year base term on prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. All three maintenance fees are recorded paid; no more fees are due. Confidence: Medium. 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 Oct 5, 2007, when application 11/973,069, the earliest non-provisional in its chain, was filed (this one was filed Sep 14, 2010) | Oct 5, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +239 days, USPTO patent term adjustment record | May 31, 2028 | High confidence |
| Terminal disclaimer cap | Disclaimer on file (approved), reference document not resolved | no cap applied, and none guessed | Medium confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | no later than May 31, 2028 | Medium confidence |
This family
| US 7,797,072 | In force Sep 2028 | Sep 2028 |
| US 8,005,651 | In force Nov 2029 | Nov 2029 |
| Application 12/820,968 | Abandoned not computed | not computed |
| US 8,986,234 | In force Oct 2030 | Oct 2030 |
| US 8,613,716 | Lapsed on the fee record Dec 2025 | Dec 2025 |
| US 8,417,487 | this patent no later than May 2028 | no later than May 2028 |
| Application 13/214,096 | Abandoned not computed | not computed |
| Application PCT/US2012/051612 | PCT application no patent term | no patent term |
8 of 24 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 |
|---|---|---|---|
| Sep 12, 2012 Reel 28940, frame 949 | Bespoke Innovations, Inc. | 3D Systems, Inc. | Assignment of Assignor's Interest |
| Feb 27, 2019 Reel 48456, frame 17 | 3D Systems, Inc. | HSBC Bank USA, National Association, as Administrative Agent | Security Interest |
| Aug 26, 2021 Reel 57651, frame 374 | HSBC Bank USA, National Association | 3D Systems, 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
May 2028
Term ends no later than May 31, 2028. No further fees fall due before then
Note
A terminal disclaimer is on file and its reference is not resolved. No cap is applied and none is guessed
Note
The 239 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Open question
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than May 31, 2028. We will not guess the cap.
Citations
16
later US patents cite this one
That is above the median of utility patents granted in 2013 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
This computed term ends no later than the date shown; an unresolved terminal disclaimer may end it earlier. 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.