Electronic circuit to reduce noise in digital subscriber loop and communications over unshielded twisted pair metallic conductors
US 7,200,223 Lapsed on the fee recordLapsed Apr 3, 2015 on the fee record · From the USPTO record
20-year base term ended Jul 15, 2024
Second maintenance fee unpaid; grace period ended.
Jul 15, 2004
Apr 3, 2015
Apr 3, 2007
Jul 17, 2024
How we calculated this date
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Jul 15, 2004, when this application, 10/893,158, was filed | Jul 15, 2024 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +2 days, USPTO patent term adjustment record | Jul 17, 2024 | 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 | 1 of 3 maintenance fees paid | lapsed Apr 3, 2015 | High confidence |
| Computed term end | The steps above, in order | Apr 3, 2015 | 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.