Prolitec Inc.
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
9
Ending by 2030
Mar 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.
- 2 fees due Nov 21 to 30, 2026 · next Nov 21
- 1 fee due Apr 20, 2027The maintenance fee for Removable Cartridge for Liquid Diffusion Device and Cartridge Insert Thereof (US 9,162,004) comes due Apr 20, 2027. Unpaid by Oct 20, 2027, it lapses early.
- 1 fee due Jul 9, 2027The maintenance fee for Air Treatment Appliance (US 11,865,233) comes due Jul 9, 2027. Unpaid by Jan 10, 2028, it lapses early.
- 1 fee due Aug 2, 2027The maintenance fee for Removable Cartridge for Liquid Diffusion Device (US 9,248,461) comes due Aug 2, 2027. Unpaid by Feb 2, 2028, it lapses early.
- 1 fee due Nov 10, 2027The maintenance fee for Air treatment systems and methods (US 9,334,118) comes due Nov 10, 2027. Unpaid by May 10, 2028, 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.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 10,172,970 | Feedback loop control of aerosolized compound within a human occupiable space In force · From the USPTO record | In force | From the USPTO record | |
| US 10,258,711 | Diffusion device with replaceable cartridge In force · From the USPTO record | In force | From the USPTO record | |
| US 8,855,827 | System and method of controlling operation of a liquid diffusion appliance In force · From the USPTO record | In force | From the USPTO record | |
| US 7,712,683 | Diffusion device with replaceable cartridge In force · From the USPTO record | In force | From the USPTO record | |
| US 11,033,651 | System and method of controlling operation of a liquid diffusion appliance In force · From the USPTO record | In force | From the USPTO record | |
| US 8,939,386 | Diffusion Device with Replaceable Cartridge In force · Medium confidence | In force | Medium confidence | |
| US D752,731 | Removable cartridge for a diffusion device In force · From the USPTO record | In force | From the USPTO record | |
| US D752,732 | Removable cartridge for a diffusion device In force · From the USPTO record | In force | From the USPTO record | |
| US 9,789,219 | Glycol sensor for feedback loop control In force · From the USPTO record | In force | From the USPTO record | |
| US D792,958 | Air treatment appliance In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 35: 4 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.
1 abandoned · 1 no status recorded