System, Method, and User Interface for a Search Engine Based on Multi-Document Summarization
US 11,651,039 In forceTerm ends Apr 12, 2028 · Medium confidence
20-year base term ends Jan 30, 2028
Why Medium: The disclaimer's references carry disclaimers of their own not yet read (US 9,218,414), so the cap could be lower.
Jan 30, 2008
Apr 12, 2028
May 16, 2023
How we calculated this date
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Jan 30, 2008, when the earliest non-provisional application in its chain was filed (this one was filed Aug 31, 2020) | Jan 30, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +235 days, USPTO patent term adjustment record | Sep 21, 2028 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,239,358, US 9,218,414) | capped to Apr 12, 2028 | Medium confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 1 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Apr 12, 2028 | Medium 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.