Multiple-input multiple-output (MIMO) spread-spectrum system and method
US 7,068,705 Surrendered on reissueSurrendered on reissue Mar 15, 2011 · From the USPTO record
20-year base term ended Nov 24, 2018
Surrendered on reissue Mar 15, 2011 · its term and maintenance fees continue in US RE42,219 and US RE43,812.
Nov 24, 1998
Mar 15, 2011
Jun 27, 2006
May 30, 2019
How we calculated this date
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Nov 24, 1998, when the earliest non-provisional application in its chain was filed (this one was filed Jun 7, 2004) | Nov 24, 2018 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +187 days, USPTO patent term adjustment record | May 30, 2019 | 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 | No fee event states this; the fee state is read from the payments the fee record holds | no change | Medium confidence |
| Reissue | US RE42,219 and US RE43,812 issued Mar 15, 2011, and this patent's term continues in it (35 U.S.C. 251, 252) | surrendered Mar 15, 2011 | High confidence |
| Surrendered on reissue | The steps above, in order | Mar 15, 2011 | 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.