Glass Composition
US 7,960,301 Term endedTerm ended Aug 4, 2026 · Medium confidence
20-year base term ended Aug 4, 2026
Why Medium: The disclaimer's references carry disclaimers of their own not yet read (US 7,786,035), so the cap could be lower.
Aug 4, 2006
Aug 4, 2026
Jun 14, 2011
How we calculated this date
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Aug 4, 2006, when the earliest non-provisional application in its chain was filed (this one was filed Jul 1, 2008) | Aug 4, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +148 days, USPTO patent term adjustment record | Dec 30, 2026 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 7,786,035) | capped to Aug 4, 2026 | Medium confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 3 of 3 maintenance fees paid | term ended | High confidence |
| Computed term end | The steps above, in order | Aug 4, 2026 | 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.