Navigation Device, Navigation System, and Method of Operating the Same
US 11,841,237 In forceTerm ends Feb 17, 2031 · Low confidence
20-year base term ends Apr 12, 2030
Apr 12, 2010
Feb 17, 2031
Dec 12, 2023
How we calculated this date
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Apr 12, 2010, when the earliest non-provisional application in its chain was filed (this one was filed Oct 1, 2020); a parent in its chain could not be resolved (the next row) | Apr 12, 2030 | 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 | +492 days, USPTO patent term adjustment record | Aug 17, 2031 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 11,808,596, US 11,946,763, US 12,117,306) | capped to Feb 17, 2031 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 1 maintenance fees paid | In force | High confidence |
| Further caveats on record | The record names parents not resolved: 16457174, 16132012, 14931485, 13319733 | Low confidence overall | Low confidence |
| Computed term end | The steps above, in order | Feb 17, 2031 | Low confidence |
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.
Not on this page: the patent's family, its recorded assignments and its citation count. USPTO's assignment records, linked above, list every recorded assignment.
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.