Also listed on Stryker Corporation, an earlier holder on the record. The recorded assignments below show how it moved.
Collateral for a security interest recorded Aug 7, 2023 (Callodine Commercial Finance, LLC).
Term ends Nov 20, 2026 · High confidence
20-year base term ends Nov 20, 2026
Held by Edizone, LLC
Filed Aug 19, 2010 as application 12/859,351 · Granted Dec 17, 2013
Base term plus 486 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2006
2026
Clock starts
Nov 20, 2006
Nov 20, 2006
Term ends
Nov 20, 2026
Nov 20, 2026
Granted
Dec 17, 2013
Dec 17, 2013
base term
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
486
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 7,730,566, US 7,823,233, US 7,823,234, US 7,827,636.
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 486 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 Nov 20, 2006, when application 11/602,099, the earliest non-provisional in its chain, was filed (this one was filed Aug 19, 2010) | Nov 20, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +486 days, USPTO patent term adjustment record | Mar 20, 2028 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 7,730,566, US 7,823,233, US 7,823,234, US 7,827,636) | capped to Nov 20, 2026 | 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 | Nov 20, 2026 | High confidence |
This family
| US 7,730,566 | In force May 2028 | May 2028 |
| US 7,823,234 | In force Nov 2026 | Nov 2026 |
| US 7,823,233 | In force Nov 2026 | Nov 2026 |
| US 7,827,636 | In force Nov 2026 | Nov 2026 |
| US 8,607,387 | this patent Nov 2026 | Nov 2026 |
| Application PCT/US2011/048431 | 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 |
|---|---|---|---|
| Aug 24, 2010 Reel 24874, frame 807 | Flick, Roland E.; Jusiak, Joel T. | Gaymar Industries, Inc. | Assignment of Assignor's Interest |
| Oct 6, 2011 Reel 27025, frame 1 | Gaymar Industries, Inc. | Stryker Corporation | Assignment of Assignor's Interest |
| Mar 3, 2017 Reel 41883, frame 878 | Edizone, LLC | Wondergel, LLC | Confirmatory Assignment |
| Mar 3, 2017 Reel 41889, frame 537 | Wondergel, LLC | Purple Innovation, LLC | Change of Name |
| Oct 24, 2017 Reel 43934, frame 897 | Gaymar Industries, Inc. | Edizone, LLC | Assignment of Assignor's Interest |
| Feb 27, 2019 Reel 48452, frame 875 | Purple Innovation, Inc.; Purple Innovation, LLC | Delaware Trust Company, As Collateral Agent | Intellectual Property Security Agreement |
| Sep 4, 2020 Reel 53704, frame 181 | Purple Innovation, LLC | Keybank National Association | Security Interest |
| Sep 4, 2020 Reel 53706, frame 916 | Delaware Trust Company, As Collateral Agent | Purple Innovation, Inc.; Purple Innovation, LLC | Release of Security Interest |
| Sep 4, 2020 reel/frame not recorded | Delaware Trust Company, As Collateral Agent | Purple Innovation, Inc. | Release of Security Interest |
| Sep 4, 2020 reel/frame not recorded | Delaware Trust Company, As Collateral Agent | Purple Innovation, LLC | Release of Security Interest |
| Aug 7, 2023 Reel 64522, frame 839 | Purple Innovation, LLC; Purple Innovation, Inc.; Intellibed, LLC | Callodine Commercial Finance, LLC, as Administrative Agent | Security Interest |
| Aug 8, 2023 Reel 64520, frame 43 | Keybank National Association | Purple Innovation, LLC | Release of Security Interest |
| Aug 8, 2023 Reel 64530, frame 181 | Purple Innovation, LLC | Bank of Montreal | Security Interest |
| Aug 18, 2023 Reel 64640, frame 737 | Purple Innovation, LLC; Purple Innovation, Inc.; Intellibed, LLC | Callodine Commercial Finance, LLC, as Administrative Agent | Corrective Assignment to Correct the Signatories of the Grantors and Grantor Column Added to Schedule Previously Recorded on Reel 064522 Frame 0839. Assignor(S) Hereby Confirms the Grant of Security Interest - Patents. |
| Jan 25, 2024 Reel 66369, frame 365 | Bank of Montreal | Delaware Trust Company | Security Interest |
| Jan 25, 2024 Reel 66369, frame 431 | Callodine Commercial Finance, LLC | Delaware Trust Company | Security Interest |
| Jan 25, 2024 Reel 66369, frame 487 | Delaware Trust Company | Purple Innovation, LLC | Release of Security Interest |
| Jan 25, 2024 Reel 66369, frame 610 | Purple Innovation, Inc.; Purple Innovation, LLC; Intellibed, LLC | Delaware Trust Company | Security Interest |
| Dec 18, 2024 Reel 69737, frame 184 | Stryker Corporation | Stryker Corporation | Change of Address |
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.
What's changing
Nov 2026
Term ends Nov 20, 2026. No further fees fall due before then
Note
The 486 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 7,730,566, US 7,823,233, US 7,823,234, US 7,827,636.
Citations
28
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.