Dac Vision, Inc.
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
Recorded under 2 name spellings.
5
Ending by 2030
Nov 2026
Next term end
When these terms end
Held patents by the year their term ends
20262027202820292030203120322033203420352036203720382039204020412042204320442045
Fee deadlines
Maintenance fees fall due 3.5, 7.5 and 11.5 years after grant. A missed fee ends a patent at the end of the six month grace period that follows, not on the due date.
- 1 fee due Dec 4, 2026The maintenance fee for Ophthalmic Lens Processing Apparatus with Improved User Accessibility (US 10,307,881) comes due Dec 4, 2026. Unpaid by Jun 4, 2027, it lapses early.
Recent changes
Nothing was recorded against this company's patents in the last 90 days.
Patents held now
Soonest term end first. Each date below is computed on that patent's own page, which shows the rule, the adjustments and the fee history it was derived from.
Showing 1 to 6 of 6
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,643,899 | Method of beveling an ophthalmic lens blank, machine programmed therefor, and computer program In force · From the USPTO record | In force | From the USPTO record | |
| US 8,386,068 | Method of calibrating an ophthalmic processing device, machine programmed therefor, and computer program In force · From the USPTO record | In force | From the USPTO record | |
| US 8,630,731 | Method of calibrating an ophthalmic processing device, machine programmed therefor, and computer program In force · From the USPTO record | In force | From the USPTO record | |
| US 7,454,264 | Method of beveling an ophthalmic lens blank, machine programmed therefor, and computer program In force · From the USPTO record | In force | From the USPTO record | |
| US 7,970,487 | Method of calibrating an ophthalmic processing device, machine programmed therefor, and computer program In force · From the USPTO record | In force | From the USPTO record | |
| US 10,307,881 | Ophthalmic Lens Processing Apparatus with Improved User Accessibility In force · High confidence | In force | High confidence |
Also on record, not counted in the 6: 7 lapsed for an unpaid fee · 21 ended at full term. List them
Sources and methods
Compiled from the USPTO record, grants, published applications and recorded assignments, not yet reviewed by hand.
How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.