Also listed on U.S. Biotest, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Jun 13, 2038 · High confidence
20-year base term ends Jun 13, 2038
Held by Crititech, Inc.
Filed Jun 18, 2019 as application 16/444,299 · Granted Dec 17, 2019
Base term, 20 years from filing
Today
2018
2038
Clock starts
Jun 13, 2018
Jun 13, 2018
Term ends
Jun 13, 2038
Jun 13, 2038
Granted
Dec 17, 2019
Dec 17, 2019
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
None
Term adjustment
No prosecution delay on this record.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 10,398,646, to Jun 13, 2038. The term already ends on or before that date, so the cap shortened nothing.
1 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.
3
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 is its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 1 of 3 maintenance fees is paid so far. 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 Jun 13, 2018, when application 16/007,095, the earliest non-provisional in its chain, was filed (this one was filed Jun 18, 2019) | Jun 13, 2038 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,398,646) | resolves to Jun 13, 2038, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jun 13, 2038 | High confidence |
This family
| US 10,398,646 | In force Jun 2038 | Jun 2038 |
| US 10,507,181 | this patent Jun 2038 | Jun 2038 |
| US 11,160,754 | In force Jun 2038 | Jun 2038 |
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 |
|---|---|---|---|
| Jun 24, 2019 Reel 49572, frame 219 | Johnston, William; Verco, James | U.S. Biotest, Inc. | Assignment of Assignor's Interest |
| Jun 27, 2019 Reel 49601, frame 984 | Baltezor, Michael; McClorey, Matthew; Dizerega, Gere S. | Crititech, Inc. | Assignment of Assignor's Interest |
| Sep 24, 2019 Reel 50475, frame 931 | Baltezor, Michael; McClorey, Matthew; Johnston, William; Dizerega, Gere S.; Verco, James | Crititech, Inc. | Assignment of Assignor's Interest |
| Sep 27, 2019 Reel 50512, frame 10 | U.S. Biotest, Inc. | Crititech, Inc. | 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
Jun 2038
Term ends Jun 13, 2038. Maintenance fees still fall due before then
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 10,398,646, ends no earlier than this term, so it caps nothing.
Citations
10
later US patents cite this one
That is top 25% of utility patents granted in 2019 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.