Vicat
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
1
Ending by 2030
Apr 2027
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 Oct 26, 2027The maintenance fee for Cement clinker manufacturing plant (US 9,321,684) comes due Oct 26, 2027. Unpaid by Apr 26, 2028, it lapses early.
Recent changes
- 1 of the patents on this record was granted since Aug 16, 2026
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.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,445,668 | Hydraulic binder having low CO2 emission level In force · From the USPTO record | In force | From the USPTO record | |
| US 8,568,528 | Iron-doped sulfo-belitic clinker In force · From the USPTO record | In force | From the USPTO record | |
| US 9,321,684 | Cement clinker manufacturing plant In force · From the USPTO record | In force | From the USPTO record | |
| US 9,409,818 | Sulfo-aluminous clinker with a low belite content In force · From the USPTO record | In force | From the USPTO record | |
| US 9,434,646 | Phosphorus-doped sulfo-belitic clinker In force · From the USPTO record | In force | From the USPTO record | |
| US 11,230,496 | Construction material prepared from a new pozzolanic material In force · From the USPTO record | In force | From the USPTO record | |
| US 11,518,713 | Use of a Clay in the Preparation of a Geopolymer Precursor In force · High confidence | In force | High confidence | |
| US 12,264,100 | Use of a Clay for Producing a Pozzolanic Material In force · High confidence | In force | High confidence | |
| US 12,312,273 | Cement composition for 3D printing and method of use In force · From the USPTO record | In force | From the USPTO record | |
| US 12,539,643 | Three-Dimensional Printing Head for Printing a Three-Dimensional Structure In force · High confidence | In force | High confidence |
Also on record, not counted in the 11: 7 lapsed for an unpaid fee · 1 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.
Published applications
US patent applications published under this name that have not become patents. An application is published about eighteen months after its earliest filing; one that has not been published is in no public record.
7 pending · 8 no status recorded