Term ends no later than Mar 14, 2033 · Medium confidence
20-year base term ends Mar 14, 2033
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.
Mar 14, 2013
Mar 14, 2033
Apr 5, 2016
This patent's term is its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. 2 of 3 maintenance fees are paid so far. Confidence: Medium. from the record
How we calculated this date
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Mar 14, 2013, when application 13/831,334, the earliest non-provisional in its chain, was filed (this one was filed Nov 21, 2013) | Mar 14, 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 | Disclaimer on file (filed), reference document not resolved | no cap applied, and none guessed | Medium 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 | no later than Mar 14, 2033 | Medium confidence |
This family
| US 9,059,801 | In force Jul 2033 | Jul 2033 |
| US 9,306,672 | this patent no later than Mar 2033 | no later than Mar 2033 |
| US 9,306,372 | In force Mar 2033 | Mar 2033 |
| US 9,438,007 | In force Mar 2033 | Mar 2033 |
| Application PCT/US2015/050161 | PCT application no patent term | no patent term |
| US 9,564,734 | In force Mar 2033 | Mar 2033 |
| US 9,564,733 | In force Mar 2033 | Mar 2033 |
Assignments
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Nov 21, 2013 Reel 31649, frame 22 | Blauvelt, Henry A.; He, Xiaoguang; Vahala, Kerry | Emcore Corporation | Assignment of Assignor's Interest |
| May 11, 2015 Reel 35610, frame 907 | Blauvelt, Henry A.; He, Xiaoguang; Vahala, Kerry | Emcore Corporation | Assignment of Assignor's Interest |
| Aug 23, 2022 Reel 61300, frame 129 | Emcore Corporation | Wingspire Capital LLC | Security Interest |
| May 22, 2025 Reel 71352, frame 537 | Emcore Corporation | Emcore LLC | Entity Conversion |
| Jun 5, 2025 Reel 71520, frame 457 | Emcore LLC (F/K/A Emcore Corporation); Cartridge Actuated Devices, Inc. | Crystal Financial LLC D/B/A SLR Credit Solutions, as Administrative Agent | Security Interest |
| Aug 25, 2025 Reel 72106, frame 561 | Wingspire Capital LLC | Emcore Corporation | 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.
What's changing
A terminal disclaimer is on file (filed) and its reference document is not resolved. A disclaimer would cap the term earlier than Mar 14, 2033. We will not guess the cap.