Term ends Aug 18, 2031 · High confidence
20-year base term ends Sep 18, 2029
Held by Varian Medical Systems, Inc.
Filed Sep 18, 2009 as application 12/562,301 · Granted May 14, 2013
Base term plus 699 days of patent term adjustment (USPTO delay)
Today
2009
2031
Clock starts
Sep 18, 2009
Sep 18, 2009
Term ends
Aug 18, 2031
Aug 18, 2031
Granted
May 14, 2013
May 14, 2013
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
699
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
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.
15
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 699 days past its 20-year base term on prosecution delay. 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 Sep 18, 2009, when this application, 12/562,301, was filed | Sep 18, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +699 days, USPTO patent term adjustment record | Aug 18, 2031 | 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Aug 18, 2031 | High confidence |
This family
| US 9,408,654 | In force Mar 2032 | Mar 2032 |
| US 8,439,905 | this patent Aug 2031 | Aug 2031 |
| US 8,409,184 | In force Apr 2031 | Apr 2031 |
| Application PCT/US2009/062928 | PCT application no patent term | no patent term |
| US 8,998,888 | In force no later than Mar 2032 | no later than Mar 2032 |
| US 8,784,409 | In force Jan 2032 | Jan 2032 |
| US 9,089,316 | In force Jan 2032 | Jan 2032 |
| Application 13/050,055 | Abandoned not computed | not computed |
8 of 15 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 |
|---|---|---|---|
| Nov 1, 2011 Reel 27154, frame 778 | Baust, John M; Robilotto, Anthony; Snyder, Kristi K.; Cheeks, Roy; Van Buskirk, Robert; Baust, John G.; Dobson, Melissa K.; Corwin, Wil | Cpsi Holdings LLC | Assignment of Assignor's Interest |
| Nov 29, 2011 Reel 27290, frame 372 | Baust, John M.; Cheeks, Roy E.; Baust, John G.; Robilotto, Anthony; Snyder, Kristi K. | Cpsi Holdings LLC | Corrective Assignment to Correct the [removal] of an Assignor and Correct "Correspondent Name" Previously Recorded on Reel 027154 Frame 0778. Assignor(S) Hereby Confirms the Assignment. |
| Mar 2, 2012 Reel 27794, frame 791 | Cpsi Holdings LLC | Endo Pharmaceuticals Inc. | Assignment of Assignor's Interest |
| Jun 26, 2013 Reel 30690, frame 15 | Endo Pharmaceuticals Inc. | Endocare, Inc. | Assignment of Assignor's Interest |
| Sep 2, 2013 Reel 31122, frame 761 | Endo Pharmaceuticals Inc. | Endocare, Inc. | Assignment of Assignor's Interest |
| Feb 28, 2014 Reel 32372, frame 77 | Endocare, Inc. | Regions Bank | Security Agreement |
| Mar 11, 2016 Reel 38063, frame 201 | Healthtronics, Inc.; Endocare, Inc. | Midcap Financial Trust, As Administrative Agent | Security Interest |
| Jun 26, 2018 Reel 46429, frame 787 | Midcap Financial Trust, As Administrative Agent | Endocare, Inc. | Release of Security Interest |
| Jul 5, 2018 Reel 46500, frame 151 | Regions Bank | Endocare, Inc.; Healthtronics, Inc. | Release of Security Interest |
| Jul 5, 2018 reel/frame not recorded | Regions Bank | Endocare, Inc. | Release of Security Interest |
| Jul 5, 2018 reel/frame not recorded | Regions Bank | Healthtronics, Inc. | Release of Security Interest |
| Mar 25, 2021 Reel 55740, frame 29 | Endocare | Varian Medical Systems, Inc. | Assignment of Assignor's Interest |
| Aug 29, 2025 Reel 72776, frame 721 | Midcap Financial Trust | Healthtronics, Inc., C/O Jackson Walker LLP; Endocare, Inc. | Release of Security Interest |
| Aug 29, 2025 reel/frame not recorded | Midcap Financial Trust | Healthtronics, Inc., C/O Jackson Walker LLP | Release of Security Interest |
| Aug 29, 2025 reel/frame not recorded | Midcap Financial Trust | Endocare, Inc. | 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.
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Alerts on its grants, lapses and transfers.
What's changing
Aug 2031
Term ends Aug 18, 2031. No further fees fall due before then
Note
The 699 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
18
later US patents cite this one
That is above the median 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.