Dongnan Elevator Co., Ltd.
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
Recorded under 2 name spellings.
0
Ending by 2030
Nov 2034
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 Mar 3, 2027The maintenance fee for Hydraulic elevating platform having no guide rails and elevating method (US 10,399,822) comes due Mar 3, 2027. Unpaid by Sep 3, 2027, it lapses early.
- 1 fee due Jun 24, 2027The maintenance fee for Slope-adaptive inclined special elevator (US 10,513,419) comes due Jun 24, 2027. Unpaid by Dec 27, 2027, it lapses early.
- 1 fee due Oct 16, 2027The maintenance fee for Action state detection method and system for elevator brake (US 11,958,719) comes due Oct 16, 2027. Unpaid by Apr 17, 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.
Showing 1 to 5 of 5
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 9,840,399 | Mining elevator carrying platform and carrying method In force · From the USPTO record | In force | From the USPTO record | |
| US 10,513,419 | Slope-adaptive inclined special elevator In force · From the USPTO record | In force | From the USPTO record | |
| US 10,399,822 | Hydraulic elevating platform having no guide rails and elevating method In force · From the USPTO record | In force | From the USPTO record | |
| US 11,958,719 | Action state detection method and system for elevator brake In force · From the USPTO record | In force | From the USPTO record | |
| US 12,129,150 | Collaborative Scheduling Method for High-Rise Elevators Based on Internet of Things In force · High confidence | In force | High confidence |
Also on record, not counted in the 5: 6 lapsed for an unpaid fee. 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
Every application published under this name has become a patent.