Charge-Bearing Cyclodextrin Polymeric Materials and Methods of Making and Using Same
US 11,512,146 In forceTerm ends Feb 13, 2040 · Medium confidence
20-year base term ends Feb 13, 2040
Why Medium: A parent in the chain could not be resolved.
Feb 13, 2020
Feb 13, 2040
Nov 29, 2022
How we calculated this date
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Feb 13, 2020, when the earliest non-provisional application in its chain was filed (this one was filed Sep 22, 2021); a parent in its chain could not be resolved (the next row) | Feb 13, 2040 | 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 | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 11,001,645, US 11,155,646) | resolves to Feb 13, 2040, 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 | Feb 13, 2040 | 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.