Term ends Aug 26, 2027 · High confidence
20-year base term ended May 18, 2026
Held by Hyclone Laboratories, LLC
Filed May 18, 2006 as application 11/436,680 · Granted Aug 2, 2011
Base term plus 465 days of patent term adjustment (USPTO delay)
Today
2006
2027
Clock starts
May 18, 2006
May 18, 2006
Term ends
Aug 26, 2027
Aug 26, 2027
Granted
Aug 2, 2011
Aug 2, 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
465
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.
This patent's term runs 465 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 May 18, 2006, when this application, 11/436,680, was filed | May 18, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +465 days, USPTO patent term adjustment record | Aug 26, 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 26, 2027 | High confidence |
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 |
|---|---|---|---|
| Jun 6, 2006 Reel 17758, frame 226 | Winstead, J; Grimm, William L. | Seradyn, Inc. | Assignment of Assignor's Interest |
| Jul 9, 2019 Reel 49698, frame 247 | Seradyn, Inc. | GMC Consolidation LLC | Assignment of Assignor's Interest |
| Dec 13, 2022 Reel 62063, frame 882 | GMC Consolidation LLC | Hyclone Laboratories, Inc. | Assignment of Assignor's Interest |
| Jan 23, 2023 Reel 62460, frame 984 | GMC Consolidation LLC | Hyclone Laboratories, LLC | Corrective Assignment to Correct the Typographical Error in the Assignee's Name Previously Recorded at Reel: 062063 Frame: 0882. Assignor(S) Hereby Confirms the Assignment. |
| Feb 14, 2024 Reel 66459, frame 159 | GMC Consolidation LLC | Hyclone Laboratories, Inc. | Change of Name |
| Feb 14, 2024 Reel 66597, frame 54 | Hyclone Laboratories, Inc. | Hyclone Laboratories, LLC | Change of Name |
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
Aug 2027
Term ends Aug 26, 2027. No further fees fall due before then
Note
The 465 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
20
later US patents cite this one
That is above the median 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.