NEC Network and Sensor Systems, Ltd.
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
Recorded under 2 name spellings.
11
Ending by 2030
Aug 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 Apr 24, 2027The maintenance fee for Microwave tube and method for controlling the same (US 11,798,770) comes due Apr 24, 2027. Unpaid by Oct 25, 2027, it lapses early.
- 4 fees due May 12 to 26, 2027 · next May 12
- 1 fee due Jun 10, 2027The maintenance fee for Electronic component housing apparatus and electronic device (US 10,506,742) comes due Jun 10, 2027. Unpaid by Dec 10, 2027, it lapses early.
- 1 fee due Oct 2, 2027The maintenance fee for Pillbox-type RF window including a protrusion and notch assembly for suppressing rotation of the window and a manufacturing method therefor (US 11,949,140) comes due Oct 2, 2027. Unpaid by Apr 3, 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 7,589,469 | Coaxial waveguide converter circuit for traveling-wave tube, method of manufacturing same, and waveguide matching part for use in coaxial waveguide converter circuit In force · From the USPTO record | In force | From the USPTO record | |
| US 7,652,392 | Power supply device and high-frequency circuit system In force · From the USPTO record | In force | From the USPTO record | |
| US 7,719,196 | Structure of coaxial-to-waveguide transition and traveling wave tube In force · From the USPTO record | In force | From the USPTO record | |
| US 7,764,025 | Power supply apparatus and high-frequency circuit system In force · From the USPTO record | In force | From the USPTO record | |
| US 7,800,311 | Power supply unit, high-frequency circuit system and heater voltage control method In force · From the USPTO record | In force | From the USPTO record | |
| US 7,898,181 | Traveling wave tube In force · From the USPTO record | In force | From the USPTO record | |
| US 7,898,346 | Power supply apparatus and high-frequency circuit system In force · From the USPTO record | In force | From the USPTO record | |
| US 8,905,634 | Temperature detection apparatus In force · From the USPTO record | In force | From the USPTO record | |
| US 7,952,288 | Power supply apparatus and high-frequency circuit system In force · From the USPTO record | In force | From the USPTO record | |
| US 8,027,182 | Electric current measurement apparatus, voltage measurement apparatus and power supply apparatus In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 32: 6 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.
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 no status recorded