Method and morphologically adaptable apparatus for altering the charge distribution upon living membranes with functional stabilization of the membrane physical electrical integrity
US 8,105,228 Lapsed on the fee recordLapsed Jan 31, 2024 on the fee record · From the USPTO record
20-year base term ended Aug 31, 2026
Third maintenance fee unpaid; grace period ended.
Aug 31, 2006
Jan 31, 2024
Jan 31, 2012
Jun 5, 2027
How we calculated this date
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Aug 31, 2006, when the earliest non-provisional application in its chain was filed (this one was filed Oct 26, 2009) | Aug 31, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +278 days, USPTO patent term adjustment record | Jun 5, 2027 | High confidence |
| Terminal disclaimer cap | None on record | no cap applied | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 3 maintenance fees paid | lapsed Jan 31, 2024 | High confidence |
| Computed term end | The steps above, in order | Jan 31, 2024 | From the USPTO record |
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.