Term ends Aug 29, 2029 · High confidence
20-year base term ended Oct 30, 2026
Held by Freeslate, Inc.
Filed Oct 23, 2008 as application 12/088,769 · Granted Nov 20, 2012
Base term plus 1034 days of patent term adjustment (USPTO delay)
Today
2006
2029
Clock starts
Oct 30, 2006
Oct 30, 2006
Term ends
Aug 29, 2029
Aug 29, 2029
Granted
Nov 20, 2012
Nov 20, 2012
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
1,034
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
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.
3
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 1034 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 Oct 30, 2006, when application PCT/US2006/042673, the earliest non-provisional in its chain, was filed (this one was filed Oct 23, 2008) | Oct 30, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1034 days, USPTO patent term adjustment record | Aug 29, 2029 | 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Aug 29, 2029 | High confidence |
This family
| US 8,313,711 | this patent Aug 2029 | Aug 2029 |
| US 8,858,066 | Term ended Oct 2026 | Oct 2026 |
2 of 3 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 |
|---|---|---|---|
| Aug 11, 2008 Reel 21368, frame 908 | Gao, Jason; Calcavecchio, Peter | Exxonmobile Research and Engineering | Assignment of Assignor's Interest |
| Aug 15, 2008 Reel 21394, frame 546 | Exxonmobile Research and Engineering | Symyx Technologies, Inc. | Assignment of Assignor's Interest |
| Aug 20, 2008 Reel 21417, frame 267 | Gao, Jason; Calcavecchio, Peter | ExxonMobil Research and Engineering Company | Corrective Assignment to Correct the Assignee from Exxonmobile Research and Engineering to Exxonmobil Research and Engineering Company Previously Recorded on Reel 021368 Frame 0908. Assignor(S) Hereby Confirms the Assignment. |
| Aug 20, 2008 Reel 21417, frame 327 | Exxonmovil Research and Engineering Company | Symyx Technologies, Inc. | Corrective Assignment to Correct the Assignor from Exxonmobile Research and Engineering to Exxonmobil Research and Engineering Company Previously Recorded on Reel 021394 Frame 0546. Assignor(S) Hereby Confirms the Assignment. |
| Sep 5, 2008 Reel 21487, frame 596 | ExxonMobil Research and Engineering Company | Symyx Technologies, Inc. | Corrective Assignment to Correct the Assignor from Exxonmovil Research and Engineering Company to Exxonmobil Research and Engineering Company Previously Recorded on Reel 021417 Frame 0327. Assignor(S) Hereby Confirms the Assignment. |
| Jul 13, 2009 Reel 22939, frame 564 | Symyx Technologies, Inc. | Symyx Solutions, Inc. | Assignment of Assignor's Interest |
| Mar 10, 2010 Reel 24057, frame 911 | Symyx Solutions, Inc. | Freeslate, Inc. | Assignment of Assignor's Interest |
| Apr 5, 2018 Reel 45452, frame 987 | Freeslate, Inc. | Unchained Labs | Assignment of Assignor's Interest |
| Aug 9, 2021 Reel 57121, frame 512 | Unchained Labs, LLC; Ultimate Intermediate, LLC | Midcap Financial Trust | Security Interest |
| Oct 29, 2026 Reel 76564, frame 581 | Brown, Jeffrey A.; Hahn, Hyeok | Symyx Technologies, Inc. | Assignment of Assignor's Interest |
| Oct 29, 2026 Reel 76564, frame 632 | Symyx Technologies, Inc. | Symyx Solutions, Inc. | Assignment of Assignor's Interest |
| Oct 29, 2026 Reel 76564, frame 674 | Symyx Solutions, Inc. | Freeslate, Inc. | Assignment of Assignor's Interest |
| Oct 29, 2026 Reel 76564, frame 483 | Unchained Labs | Unchained Labs, LLC | 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.
What's changing
Aug 2029
Term ends Aug 29, 2029. No further fees fall due before then
Note
The 1034 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
84
later US patents cite this one
That is top 10% of utility patents granted in 2012 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.