Kato Engineering Inc.
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
1
Ending by 2030
Mar 2029
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 20, 2027The maintenance fee for Systems and methods for detecting over/under excitation faults (US 9,164,148) comes due Apr 20, 2027. Unpaid by Oct 20, 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 5 of 5
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,982,359 | High Efficiency Salient Pole Machine and Method of Forming the Same In force · High confidence | In force | High confidence | |
| US 9,164,148 | Systems and methods for detecting over/under excitation faults In force · From the USPTO record | In force | From the USPTO record | |
| US 10,077,955 | Superconducting electrical machine with double re-entrant ends for minimizing heat leak In force · From the USPTO record | In force | From the USPTO record | |
| US 10,079,534 | Superconducting electrical machine with rotor and stator having separate cryostats In force · From the USPTO record | In force | From the USPTO record | |
| US 10,270,311 | Superconducting Electrical Machine with Two Part Rotor with Center Shaft Capable of Handling Bending Loads In force · High confidence | In force | High confidence |
Also on record, not counted in the 5: 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.