Term ends no later than Feb 6, 2027 · Medium confidence
20-year base term ended May 10, 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.
Filed Nov 22, 2006 as application 11/603,846 · Granted Nov 23, 2010
Base term plus 272 days of patent term adjustment (USPTO delay)
Today
2006
2027
Clock starts
May 10, 2006
May 10, 2006
Ends no later than
Feb 6, 2027
Feb 6, 2027
Granted
Nov 23, 2010
Nov 23, 2010
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
272
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
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.
7
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 272 days past its 20-year base term on 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 May 10, 2006, when application 11/432,285, the earliest non-provisional in its chain, was filed (this one was filed Nov 22, 2006) | May 10, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +272 days, USPTO patent term adjustment record | Feb 6, 2027 | 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 Feb 6, 2027 | Medium confidence |
This family
| US 7,824,436 | In force Apr 2028 | Apr 2028 |
| US 7,837,722 | this patent no later than Feb 2027 | no later than Feb 2027 |
| Application 11/881,105 | Abandoned not computed | not computed |
| US 8,075,605 | Term ended no later than Jun 2026 | no later than Jun 2026 |
| US 8,313,520 | Lapsed on the fee record Nov 2024 | Nov 2024 |
| US 9,358,150 | In force Apr 2029 | Apr 2029 |
| US 10,561,527 | In force no later than Aug 2028 | no later than Aug 2028 |
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 8, 2007 Reel 18901, frame 28 | Barbut, Denise; Rozenberg, Allan | Benechill, Inc. | Assignment of Assignor's Interest |
| Feb 18, 2015 Reel 35034, frame 628 | Hoffman, John K; Shaffer, Thomas H | Benechill, Inc. | Assignment of Assignor's Interest |
| Jul 23, 2015 Reel 36163, frame 535 | Benechill, Inc. | Healthcap V L.P.; Ofp V Advisor AB; NGN Biomed Opportunity Annex Fund L.P.; NGN Biomed Opportunity I, L.P.; NGN Biomed Opportunity I GmbH & Co. Beteiligungs KG; Marchessini, Alexander; Berman, Michael; Cohen, Fred; Michael Berman Revocable Trust | Security Agreement |
| Jul 23, 2015 reel/frame not recorded | Benechill, Inc. | Healthcap V L.P. | Security Agreement |
| Jul 23, 2015 reel/frame not recorded | Benechill, Inc. | Ofp V Advisor AB | Security Agreement |
| Jul 23, 2015 reel/frame not recorded | Benechill, Inc. | NGN Biomed Opportunity Annex Fund L.P. | Security Agreement |
| Jul 23, 2015 reel/frame not recorded | Benechill, Inc. | NGN Biomed Opportunity I, L.P. | Security Agreement |
| Jul 23, 2015 reel/frame not recorded | Benechill, Inc. | NGN Biomed Opportunity I GmbH & Co. Beteiligungs KG | Security Agreement |
| Jul 23, 2015 reel/frame not recorded | Benechill, Inc. | Marchessini, Alexander | Security Agreement |
| Jul 23, 2015 reel/frame not recorded | Benechill, Inc. | Berman, Michael | Security Agreement |
| Jul 23, 2015 reel/frame not recorded | Benechill, Inc. | Cohen, Fred | Security Agreement |
| Jul 23, 2015 reel/frame not recorded | Benechill, Inc. | Michael Berman Revocable Trust | Security Agreement |
| Sep 30, 2016 Reel 39911, frame 289 | Healthcap V L.P; Ofp V Advisor AB; NGN Biomed Opportunity Annex Fund L.P.; NGN Biomed Opportunity I, L.P.; NGN Biomed Opportunity I GmbH & Co.; Marchessini, Alexander; Berman, Michael; Cohen, Fred; Michael Berman Revocable Trust | Benechill, Inc. | Release of Security Interest |
| Oct 22, 2016 Reel 40094, frame 502 | Benechill, Inc. | Braincool AB | Assignment of Assignor's Interest |
| Dec 7, 2022 Reel 62014, frame 201 | Wolfson, Marla R | Temple University - of the Commonwealth System of Higher Education | Assignment of Assignor's 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
Feb 2027
Term ends no later than Feb 6, 2027. 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
Note
The 272 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Open question
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than Feb 6, 2027. We will not guess the cap.
Citations
43
later US patents cite this one
That is top 25% of utility patents granted in 2010 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.