Evapco, Inc.
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
10
Ending by 2030
Dec 2026
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 Nov 14, 2026The maintenance fee for Thermal Capacity of Elliptically Finned Heat Exchanger (US 10,288,352) comes due Nov 14, 2026. Unpaid by May 14, 2027, it lapses early.
- 3 fees due Dec 13 to 20, 2026 · next Dec 13
- 1 fee due Jan 28, 2027The maintenance fee for Hybrid heat exchanger apparatus and method of operating the same (US 9,091,485) comes due Jan 28, 2027. Unpaid by Jul 28, 2027, it lapses early.
- 1 fee due Feb 8, 2027The maintenance fee for Arrowhead fin for heat exchange tubing (US 11,719,494) comes due Feb 8, 2027. Unpaid by Aug 9, 2027, it lapses early.
- 1 fee due Apr 17, 2027The maintenance fee for Advanced Large Scale Field-Erected Air Cooled Industrial Steam Condenser (US 11,788,792) comes due Apr 17, 2027. Unpaid by Oct 18, 2027, it lapses early.
- 3 fees due May 5 to 21, 2027 · next May 5
- 2 fees due Jun 5 to 30, 2027 · next Jun 5
- 2 fees due Jul 26 to 30, 2027 · next Jul 26
- 1 fee due Aug 25, 2027The maintenance fee for Multi-cavity tubes for air-over evaporative heat exchanger (US 10,571,198) comes due Aug 25, 2027. Unpaid by Feb 25, 2028, it lapses early.
- 2 fees due Sep 19 to 30, 2027 · next Sep 19
- 1 fee due Nov 12, 2027The maintenance fee for Mini-Tube Air Cooled Industrial Steam Condenser (US 10,648,740) comes due Nov 12, 2027. Unpaid by May 12, 2028, it lapses early.
Recent changes
- 3 of the patents on this record were granted since Aug 16, 2026
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 7,475,719 | High-frequency, low-amplitude corrugated fin for a heat exchanger coil assembly In force · From the USPTO record | In force | From the USPTO record | |
| US 7,501,596 | Dimension sensor and method for stopping expansion of a tube In force · From the USPTO record | In force | From the USPTO record | |
| US 7,927,196 | Louver module In force · From the USPTO record | In force | From the USPTO record | |
| US 7,704,364 | Full wave rectified power water treatment device In force · From the USPTO record | In force | From the USPTO record | |
| US 7,938,373 | Vertical support structure In force · From the USPTO record | In force | From the USPTO record | |
| US 7,963,492 | Vertical support structure In force · From the USPTO record | In force | From the USPTO record | |
| US 7,981,288 | Pulse resonating device In force · From the USPTO record | In force | From the USPTO record | |
| US 8,049,522 | Ice thickness probe, ice thickness probe assembly and ice thickness monitoring apparatus In force · From the USPTO record | In force | From the USPTO record | |
| US 8,093,917 | Sampling apparatus In force · From the USPTO record | In force | From the USPTO record | |
| US 8,020,837 | Splash bar In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 88: 3 lapsed for an unpaid fee · 14 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.
13 pending · 5 abandoned · 26 no status recorded