Term ends Jul 1, 2038 · High confidence
20-year base term ends Jun 18, 2038
Held by Honeycomb Battery Company
Filed Sep 10, 2018 as application 16/126,736 · Granted Apr 20, 2021
Base term plus 137 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2018
2038
Clock starts
Jun 18, 2018
Jun 18, 2018
Term ends
Jul 1, 2038
Jul 1, 2038
Granted
Apr 20, 2021
Apr 20, 2021
base term
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
137
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 10,978,744.
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.
9
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 137 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 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 18, 2018, when application 16/010,965, the earliest non-provisional in its chain, was filed (this one was filed Sep 10, 2018) | Jun 18, 2038 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +137 days, USPTO patent term adjustment record | Nov 2, 2038 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,978,744) | capped to Jul 1, 2038 | 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 | Jul 1, 2038 | High confidence |
This family
| US 10,854,927 | In force Jul 2038 | Jul 2038 |
| US 10,862,157 | In force Jul 2038 | Jul 2038 |
| US 10,957,912 | In force Sep 2038 | Sep 2038 |
| US 10,985,376 | In force Sep 2038 | Sep 2038 |
| US 10,985,365 | this patent Jul 2038 | Jul 2038 |
| US 10,978,744 | In force Jul 2038 | Jul 2038 |
| Application PCT/US2019/037700 | PCT application no patent term | no patent term |
| Application PCT/US2019/037692 | PCT application no patent term | no patent term |
8 of 9 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 |
|---|---|---|---|
| Oct 8, 2018 Reel 47090, frame 610 | Zhamu, Aruna; Jang, Bor Z; He, Hui | Nanotek Instruments, Inc. | Assignment of Assignor's Interest |
| Sep 20, 2019 Reel 50444, frame 315 | Nanotek Instruments, Inc. | Global Graphene Group, Inc. | Assignment of Assignor's Interest |
| Feb 28, 2024 Reel 66957, frame 745 | Global Graphene Group, Inc. | Honeycomb Battery Company | 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
Jul 2038
Term ends Jul 1, 2038. Maintenance fees still fall due before then
Note
The 137 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 10,978,744.
Citations
6
later US patents cite this one
That is top 25% of utility patents granted in 2021 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.