Collateral for a security interest recorded Aug 11, 2026 (Salem Five Cents Savings Bank).
Term ends Mar 16, 2031 · High confidence
20-year base term ends Jul 7, 2030
Held by Lensar, Inc.
Filed Jul 7, 2010 as application 12/831,859 · Granted Dec 31, 2013
Base term plus 471 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2010
2031
Clock starts
Jul 7, 2010
Jul 7, 2010
Term ends
Mar 16, 2031
Mar 16, 2031
Granted
Dec 31, 2013
Dec 31, 2013
base term
patent term adjustment
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
471
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 8,382,745.
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.
6
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 471 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 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 Jul 7, 2010, when this application, 12/831,859, was filed | Jul 7, 2030 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +471 days, USPTO patent term adjustment record | Oct 21, 2031 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,382,745) | capped to Mar 16, 2031 | 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 | Mar 16, 2031 | High confidence |
This family
| US 8,617,146 | this patent Mar 2031 | Mar 2031 |
| US 9,655,781 | In force Mar 2031 | Mar 2031 |
| US 11,224,541 | In force no later than Jul 2030 | no later than Jul 2030 |
| Application 16/442,458 | Abandoned not computed | not computed |
| US 11,717,444 | In force no later than Jul 2030 | no later than Jul 2030 |
| US 12,440,380 | In force Jul 2030 | Jul 2030 |
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 |
|---|---|---|---|
| Oct 1, 2013 Reel 31324, frame 917 | Lensar, Inc. | PDL Biopharma, Inc. | Security Agreement |
| Dec 15, 2015 Reel 37301, frame 363 | Lion Buyer, LLC | PDL Biopharma, Inc. | Security Interest |
| Dec 18, 2015 Reel 37328, frame 670 | Lensar, Inc. | Lion Buyer, LLC | Assignment of Assignor's Interest |
| Dec 18, 2015 Reel 37330, frame 169 | Lion Buyer, LLC | Lensar, LLC | Change of Name |
| Dec 16, 2016 Reel 40996, frame 190 | Lensar, Inc. | PDL Biopharma, Inc. | Security Interest |
| Jan 18, 2017 Reel 41258, frame 863 | Lensar, LLC | Lensar, Inc. | Assignment of Assignor's Interest |
| Feb 21, 2017 Reel 41773, frame 190 | Lensar, Inc. | PDL Biopharma, Inc. | Security Interest |
| May 11, 2017 Reel 42446, frame 763 | Lensar, Inc. | PDL Biopharma, Inc. | Security Interest |
| Jul 13, 2020 Reel 53197, frame 84 | PDL Biopharma, Inc. | Lensar, Inc. | Release of Security Interest in Intellectual Property Collateral (RF 042446/0763) |
| Jun 7, 2022 Reel 60127, frame 165 | Naranjo-tackman, Ramon; Kuri, Jorge Octavio Villar; Frey, Rudolph W | Lensar, Inc. | Assignment of Assignor's Interest |
| Aug 11, 2026 Reel 76463, frame 914 | Lensar, Inc. | Salem Five Cents Savings Bank | 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
Mar 2031
Term ends Mar 16, 2031. No further fees fall due before then
Note
The 471 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 8,382,745.
Citations
44
later US patents cite this one
That is top 25% 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.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.