Rationally-Designed Single-Chain Meganucleases with Non-Palindromic Recognition Sequences
US 12,351,839 In forceTerm ends Oct 31, 2028 · Low confidence
20-year base term ends Oct 31, 2028
Oct 31, 2008
Oct 31, 2028
Jul 8, 2025
How we calculated this date
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Oct 31, 2008, when the earliest non-provisional application in its chain was filed (this one was filed Mar 17, 2023); a parent in its chain could not be resolved (the next row) | Oct 31, 2028 | 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 | +19 days, USPTO patent term adjustment record | Nov 19, 2028 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,041,053, US 8,445,251, US 9,340,777, US 9,434,931) | capped to Oct 31, 2028 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | No maintenance fee can end the term early | In force | High confidence |
| Further caveats on record | The record names parents not resolved: PCTUS2008082072, PCTUS2008082072, PCTUS2008082072, PCTUS2008082072 | Low confidence overall | Low confidence |
| Computed term end | The steps above, in order | Oct 31, 2028 | 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.