System and Method for Creating Deduplicated Copies of Data by Tracking Temporal Relationships Among Copies and by Ingesting Difference Data
US 8,402,004 Lapsed on the fee recordLapsed Mar 19, 2025 on the fee record · High confidence
20-year base term ends Nov 16, 2030
Third maintenance fee unpaid; grace period ended.
Nov 16, 2010
Mar 19, 2025
Mar 19, 2013
Nov 16, 2030
How we calculated this date
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Nov 16, 2010, when this application, 12/947,418, was filed | Nov 16, 2030 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +83 days, USPTO patent term adjustment record | Feb 7, 2031 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,417,674) | capped to Nov 16, 2030 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 3 maintenance fees paid | lapsed Mar 19, 2025 | High confidence |
| Computed term end | The steps above, in order | Mar 19, 2025 | High 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
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