Lapsed Aug 6, 2025 on the fee record · High confidence
20-year base term ends Sep 20, 2030
Third maintenance fee unpaid; grace period ended.
Held by Korrus, Inc.
Filed Jul 29, 2011 as application 12/936,238 · Granted Aug 6, 2013
Base term, 20 years from filing
Today
Lapsed Aug 6, 2025
2010
2030
Clock starts
Sep 20, 2010
Sep 20, 2010
No longer in force
Aug 6, 2025
Aug 6, 2025
Granted
Aug 6, 2013
Aug 6, 2013
Term would have run to
Sep 20, 2030
Sep 20, 2030
base term
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
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.
49
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 Sep 20, 2030: its 20-year base term, with no 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 Sep 20, 2010, when application PCT/US2010/049531, the earliest non-provisional in its chain, was filed (this one was filed Jul 29, 2011) | Sep 20, 2030 | 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 | lapsed Aug 6, 2025 | High confidence |
| Computed term end | The steps above, in order | Aug 6, 2025 | High confidence |
This family
| Application PCT/US2010/049531 | PCT application no patent term | no patent term |
| US 8,502,465 | this patent Aug 2025 | Aug 2025 |
| US 9,293,667 | In force Aug 2031 | Aug 2031 |
| Application 13/480,767 | Abandoned not computed | not computed |
| US 9,310,052 | In force Nov 2033 | Nov 2033 |
| Application 13/886,547 | Abandoned not computed | not computed |
| US 9,360,190 | In force Feb 2034 | Feb 2034 |
| US 8,888,332 | In force Jun 2033 | Jun 2033 |
8 of 49 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 |
|---|---|---|---|
| Jul 29, 2011 Reel 26673, frame 717 | Katona, Thomas M.; Raring, James W. | Soraa, Inc. | Assignment of Assignor's Interest |
| Apr 30, 2012 Reel 28130, frame 341 | Katona, Thomas M.; Raring, James W.; D'evelyn, Mark P.; Krames, Michael R. | Soraa, Inc. | Assignment of Assignor's Interest |
| Jan 31, 2014 Reel 32148, frame 851 | Soraa, Inc. | Bridge Bank, National Association | Security Agreement |
| Aug 29, 2014 Reel 33664, frame 560 | Bridge Bank, National Association | Soraa, Inc. | Release of Security Interest in Intellectual Property Collateral at Reel/Frame No. 32148/0851 |
| Sep 5, 2014 Reel 33691, frame 582 | Soraa, Inc. | Special Value Continuation Partners, LP; Tennenbaum Opportunities Partners V, LP; TCPC SBIC, LP | Security Interest |
| Sep 5, 2014 reel/frame not recorded | Soraa, Inc. | Special Value Continuation Partners, LP | Security Interest |
| Sep 5, 2014 reel/frame not recorded | Soraa, Inc. | Tennenbaum Opportunities Partners V, LP | Security Interest |
| Sep 5, 2014 reel/frame not recorded | Soraa, Inc. | TCPC SBIC, LP | Security Interest |
| Feb 20, 2020 Reel 51974, frame 413 | Special Value Continuation Partners, LP; Tennenbaum Opportunities Partners V, LP; TCPC SBIC, LP; El Dorado Investment Company; Tennebaum Capital Partners, LLC | Soraa, Inc. | Release of Security Interest |
| May 21, 2020 Reel 52725, frame 22 | Soraa, Inc. | Ecosense Lighting, Inc. | Assignment of Assignor's Interest |
| Feb 21, 2022 Reel 59239, frame 614 | Ecosense Lighting Inc. | Korrus, Inc. | Nunc Pro Tunc Assignment |
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.
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Alerts on its grants, lapses and transfers.
Citations
87
later US patents cite this one
That is top 10% 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
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.