Hybrid Energy Storage System, Renewable Energy System Including the Storage System, and Method of Using Same
US 8,638,061 Surrendered on reissueSurrendered on reissue Sep 20, 2016 · Medium confidence
20-year base term ends Apr 1, 2030
Why Medium: No fee event states this; the fee state is read from the payments the fee record holds.
Surrendered on reissue Sep 20, 2016 · its term and maintenance fees continue in US RE46,156.
Apr 1, 2010
Sep 20, 2016
Jan 28, 2014
Apr 1, 2030
How we calculated this date
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Apr 1, 2010, when the earliest non-provisional application in its chain was filed (this one was filed Mar 15, 2013) | Apr 1, 2030 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,427,098) | resolves to Apr 1, 2030, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | No fee events in USPTO's record of this patent. A gap in the record, not evidence of lapse | no change | Medium confidence |
| Reissue | US RE46,156 issued Sep 20, 2016, and this patent's term continues in it (35 U.S.C. 251, 252) | surrendered Sep 20, 2016 | High confidence |
| Surrendered on reissue | The steps above, in order | Sep 20, 2016 | 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.