Purpose Co., Ltd.
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
4
Ending by 2030
Oct 2028
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 Dec 23, 2026The maintenance fee for Drinking water dispenser (US 9,061,875) comes due Dec 23, 2026. Unpaid by Jun 23, 2027, it lapses early.
- 1 fee due Feb 28, 2027The maintenance fee for Heat exchanging unit, heat exchanging apparatus, and hot water supply system (US 11,739,980) comes due Feb 28, 2027. Unpaid by Aug 30, 2027, it lapses early.
- 2 fees due May 10 to 14, 2027 · next May 10
- 1 fee due Jun 26, 2027The maintenance fee for Hot water supply device, hot water supply program, hot water supply method, and recording medium (US 11,852,341) comes due Jun 26, 2027. Unpaid by Dec 27, 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.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,892,821 | Culture chamber, culture apparatus and liquid supplying method for cell or tissue cultivation In force · From the USPTO record | In force | From the USPTO record | |
| US 9,061,875 | Drinking water dispenser In force · From the USPTO record | In force | From the USPTO record | |
| US 9,752,112 | Pressure and circulation culture apparatus and pressure and circulation culture system In force · From the USPTO record | In force | From the USPTO record | |
| US 10,829,726 | Pressure and circulation culture apparatus and pressure and circulation culture system In force · From the USPTO record | In force | From the USPTO record | |
| US 9,518,762 | Hot water supply system, water heater and hot water supply control method In force · From the USPTO record | In force | From the USPTO record | |
| US 8,868,251 | Hot water supply system, water heater and hot water supply control method In force · From the USPTO record | In force | From the USPTO record | |
| US 8,521,400 | Combustion apparatus and method for combustion control In force · From the USPTO record | In force | From the USPTO record | |
| US 8,695,539 | Water heater and control method therefor In force · From the USPTO record | In force | From the USPTO record | |
| US 9,557,752 | Hot water supply apparatus and heat medium control method In force · From the USPTO record | In force | From the USPTO record | |
| US 8,821,154 | Combustion apparatus and method for combustion control thereof In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 23: 5 lapsed for an unpaid fee · 12 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.
2 no status recorded