Collateral for a security interest recorded Oct 23, 2014 (General Electric Capital Corporation).
Term ends no later than Dec 8, 2026 · Medium confidence
20-year base term ends Dec 8, 2026
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 Collagen Matrix, Inc.
Filed Feb 11, 2008 as application 12/029,095 · Granted Jun 9, 2009
Base term, 20 years from filing
Today
2006
2026
Clock starts
Dec 8, 2006
Dec 8, 2006
Ends no later than
Dec 8, 2026
Dec 8, 2026
Granted
Jun 9, 2009
Jun 9, 2009
base term
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
None
Term adjustment
No prosecution delay on this record.
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.
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 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. 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 Dec 8, 2006, when application 11/635,824, the earliest non-provisional in its chain, was filed (this one was filed Feb 11, 2008) | Dec 8, 2026 | 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 (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 Dec 8, 2026 | Medium confidence |
This family
| US 7,381,224 | In force Dec 2026 | Dec 2026 |
| US 7,544,212 | this patent no later than Dec 2026 | no later than Dec 2026 |
| Application PCT/US2009/032827 | PCT application no patent term | no patent term |
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 |
|---|---|---|---|
| Feb 12, 2008 Reel 20494, frame 382 | Li, Shu-tung; Yuen, Debbie; Chen, Hui-chen | Collagen Matrix, Inc. | Assignment of Assignor's Interest |
| Oct 23, 2014 Reel 34021, frame 474 | Collagen Matrix, Inc. | General Electric Capital Corporation, as Collateral Agent | Security Interest |
| Nov 14, 2015 Reel 37111, frame 808 | General Electric Capital Corporation, as Retiring Agent | Healthcare Financial Solutions, LLC, as Successor Agent | Assignment of Intellectual Property Security Agreement |
| Aug 1, 2019 Reel 49933, frame 378 | Collagen Matrix, Inc. | The Northwestern Mutual Life Insurance Company | Security Interest |
| Aug 1, 2019 Reel 49934, frame 317 | Capital One, National Association | Collagen Matrix, Inc. | Release of Security Interest in Intellectual Property |
| Aug 1, 2019 Reel 51594, frame 368 | Collagen Matrix, Inc. | Golub Capital, LLC | First Lien Patent Security Agreement |
| Aug 1, 2024 Reel 68256, frame 450 | The Northwestern Mutual Life Insurance Company | Collagen Matrix, Inc. | Release of Security Interest in Patents Recorded at R/F 049933/0378 |
| Jan 26, 2026 Reel 73583, frame 580 | Golub Capital Markets LLC, as Administrative Agent | Collagen Matrix, Inc. | Release of Security Interest |
| Jan 26, 2026 Reel 73583, frame 614 | Collagen Matrix, Inc. | Golub Capital Markets LLC, as Collateral Agent | 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
Dec 2026
Term ends no later than Dec 8, 2026. 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
Open question
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than Dec 8, 2026. We will not guess the cap.
Citations
10
later US patents cite this one
That is below the median of utility patents granted in 2009 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.