Collateral for a security interest recorded Jan 5, 2026 (Ares Capital Corporation).
Term ends Aug 11, 2027 · Medium confidence
20-year base term ended Jan 17, 2023
Why Medium: A parent in the chain could not be resolved.
Held by Topgolf International, Inc.
Filed Oct 31, 2005 as application 11/264,177 · Granted Aug 23, 2011
Base term plus 1667 days of patent term adjustment (USPTO delay)
Today
2003
2027
Clock starts
Jan 17, 2003
Jan 17, 2003
Term ends
Aug 11, 2027
Aug 11, 2027
Granted
Aug 23, 2011
Aug 23, 2011
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
1,667
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.
4
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 1667 days past its 20-year base term on prosecution delay. 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 Jan 17, 2003, when application 10/346,919, the earliest non-provisional in its chain, was filed (this one was filed Oct 31, 2005); a parent in its chain could not be resolved (the next row) | Jan 17, 2023 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | +1667 days, USPTO patent term adjustment record | Aug 11, 2027 | 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 11, 2027 | Medium confidence |
This family
| US 8,002,645 | this patent Aug 2027 | Aug 2027 |
| US 8,425,350 | Term ended Feb 2023 | Feb 2023 |
2 of 4 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 |
|---|---|---|---|
| Feb 3, 2006 Reel 17521, frame 634 | Savarese, Chris; Cadorniga, Lauro C.; Fulton, Forrest F.; Marshall, Noel H.c.; Glissman, John; Gilliland, Kenneth P.; Vickers, Marvin L.; McGill, Susan; Shea, Mark A.; Scheller Jr., James C. | Radar Golf, Inc. | Assignment of Assignor's Interest |
| Jan 16, 2009 Reel 22191, frame 12 | Radar Corporation | The Nicholas Zwick Pourover Trust | Security Agreement |
| Nov 22, 2010 Reel 25412, frame 100 | Radar Golf, Inc. | Radar Corporation | Change of Name |
| Jul 11, 2011 Reel 26588, frame 25 | Radar Corporation | The Nicholas Zwick Pourover Trust | Partial Release of Patent Collateral |
| Oct 14, 2014 Reel 33948, frame 655 | Radar Corporation | RF Corporation | Assignment of Assignor's Interest |
| Jul 24, 2015 Reel 36182, frame 118 | RF Corporation | Topgolf International, Inc. | Confirmatory Assignment |
| Jan 27, 2016 Reel 37596, frame 632 | Topgolf International, Inc. | Royal Bank of Canada, as Administrative Agent | Security Interest |
| Aug 26, 2016 Reel 39558, frame 119 | Topgolf International, Inc.; World Golf Tour, Inc. | JPMorgan Chase Bank, N.A., as Administrative Agent | Security Interest |
| Aug 29, 2016 Reel 39568, frame 678 | Royal Bank of Canada, as Administrative Agent | Topgolf International, Inc. | Release of Security Interest |
| May 30, 2020 Reel 52795, frame 219 | Topgolf International, Inc.; World Golf Tour, LLC | Wilmington Savings Fund Society, FSB, as Purchaser Representative and Collateral Agent | Security Interest |
| Sep 24, 2020 Reel 53881, frame 417 | Wilmington Savings Fund Society, FSB | Topgolf International, Inc.; World Golf Tour, LLC | Termination and Release of Security Interest in Intellectual Property |
| Sep 24, 2020 reel/frame not recorded | Wilmington Savings Fund Society, FSB | Topgolf International, Inc. | Termination and Release of Security Interest in Intellectual Property |
| Sep 24, 2020 reel/frame not recorded | Wilmington Savings Fund Society, FSB | World Golf Tour, LLC | Termination and Release of Security Interest in Intellectual Property |
| Mar 16, 2023 Reel 63004, frame 556 | JPMorgan Chase Bank, N.A., as Administrative Agent | Topgolf International, Inc.; World Golf Tour, Inc. | Release of Security Interest |
| Mar 16, 2023 reel/frame not recorded | JPMorgan Chase Bank, N.A., as Administrative Agent | Topgolf International, Inc. | Release of Security Interest |
| Mar 16, 2023 reel/frame not recorded | JPMorgan Chase Bank, N.A., as Administrative Agent | World Golf Tour, Inc. | Release of Security Interest |
| May 16, 2023 Reel 63665, frame 176 | Topgolf Callaway Brands Corp. (Formerly Callaway Golf Company); Ogio International, Inc.; Topgolf International, Inc.; Travismathew, LLC; World Golf Tour, LLC | Bank of America, N.A, as Collateral Agent | Security Agreement |
| May 17, 2023 Reel 63692, frame 9 | Topgolf Callaway Brands Corp.; Ogio International, Inc.; Topgolf International, Inc.; Travismathew, LLC; World Golf Tour, LLC | Bank Of America, N.a. | Security Interest |
| Jan 2, 2026 Reel 74166, frame 66 | Bank Of America, N.a. | Topgolf International, Inc. | Partial Release (REEL 063665 / Frame 0176) |
| Jan 5, 2026 Reel 74197, frame 234 | Topgolf International, LLC (FKA Topgolf International, Inc.) | Ares Capital Corporation, As Collateral Agent | Patent Security Agreement |
| Jan 6, 2026 Reel 73380, frame 323 | Bank Of America, N.a. | Topgolf International, 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 2027
Term ends Aug 11, 2027. No further fees fall due before then
Note
The 1667 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
97
later US patents cite this one
That is top 10% of utility patents granted in 2011 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.