Low-Cost Solar Cells and Methods for Fabricating Low Cost Substrates for Solar Cells
US 8,796,066 Lapsed on the fee recordLapsed Aug 5, 2018 on the fee record · Low confidence
20-year base term ends Nov 7, 2028
First maintenance fee unpaid; grace period ended.
Nov 7, 2008
Aug 5, 2018
Aug 5, 2014
Nov 7, 2028
How we calculated this date
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Nov 7, 2008, when the earliest non-provisional application in its chain was filed (this one was filed Aug 24, 2010); a parent in its chain could not be resolved (the next row) | Nov 7, 2028 | 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 | +887 days, USPTO patent term adjustment record | Apr 13, 2031 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 7,951,640) | capped to Nov 7, 2028 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 3 maintenance fees paid | lapsed Aug 5, 2018 | High confidence |
| Further caveats on record | The record names parents not resolved: 12629049, 12267530 | Low confidence overall | Low confidence |
| Computed term end | The steps above, in order | Aug 5, 2018 | Low 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.